In a particular camp stove, only 30% of the energy released in burning gasoline goes to heating the water in a pot on the stove. How much gasoline must we burn to heat 1.00 L (1.00 kg) of water from 20OC to 100OC and boil away 0.25 kg of it?
Q: A beaker of negligible heat capacity contains 456 g of ice at -25.0°C. A lab technician begins to…
A: The beaker initially contains 456 grams of ice, at -25 C. Water converts into ice as soon as the…
Q: Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is…
A:
Q: In order to determine the heat capacity of their latest phone, CrabappleTM engineers cool the phone…
A: The formula for heat transfer is:Where: is the heat transferC is the total heat capacity is the…
Q: During a bout with the flu an 980-kg man ran a fever of 39.0° C instead of the normal body…
A:
Q: An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 444-g sample of…
A: We'll use law of conservation of energy here and different standard values of specific heat capacity…
Q: sume a dieter drinks 2.3 kg (i.e., 2.3 L) of ice water every day. The specific heat of water is…
A:
Q: Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is…
A:
Q: According to the USDA, an average, \moderately active" college student needs to eat 2500 calories…
A:
Q: An insulated Thermos contains 150 cm of hot coffee at 88.0°C. You put in a 15.0 g ice cube at its…
A: Let T be the final equilibrium temperature. Mass of coffee = volume x density = 160 x 1.00 = 160 g…
Q: If you are stranded in a cold and snowy environment, it is never a good idea to eat snow for…
A:
Q: law firm they make their morning coffee in an aluminum cup. The cup has a mass of 0.13 kg and is…
A:
Q: Ice at 0.00°C is added to 1.00 kg of orange juice, cooling it from 20.0°C to 5.00°C. What mass of…
A: Given data: Ice temperature = 0.00°C Mass of orange juice (m1) = 1.00 kg Initial temperature (T0) =…
Q: Air conditioners sold in the United States are given a seasonal energy-efficiency ratio (SEER)…
A: Temperature inside = 24∘ C = 24 +273 K =297 K Temperature outside =35∘C=35+273K =308 K To find SEER…
Q: A styrofoam cooler has a total surface area of 1.3 square meters and a thickness of 2.2 centimeters.…
A:
Q: a container has 0.3 kg of water and 0.5 kg of ice at 273 K. How much water vapor should be…
A:
Q: A solar hot-water-heating system consists of a hot-water tank and a solar panel. The tank is well…
A:
Q: An insulated Thermos contains 150 cm³ of hot coffee at 77.0°C. You put in a 17.0 g ice cube at its…
A:
Q: A small electric immersion heater is used to heat 87 g of water for a cup of instant coffee. The…
A: Given data: Mass (m) = 87 g = 0.087 kg Power (P) = 170 watts Initial temperature (Ti) = 18°C Final…
Q: hat all the energy ends up in the water. Something to think about: why is no heat involved in this…
A:
Q: An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 419-g sample of…
A: Given: mw= 225g of water ms= 40 g copper stirrer at 270C msilver= 419 g…
Q: An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 477-g sample of…
A: Given data: Mass of water (mw) = 225 g Mass of copper stirrer (mcu) = 40 g Mass of silver (mAg) =…
Q: A dietician develops a new diet, in which people drink copious amounts of ice water. The theory is…
A:
Q: A 70.0-kg block of ice at 0.00°C breaks off from a glacier, slides along the frictionless ice to the…
A: The objective of the question is to find out how much of the mass of the ice is melted by the…
Q: A small electric immersion heater is used to heat 84 g of water for a cup of instant coffee. The…
A: Given : mass, m = 84 g = 84 × 10-3 Kg Power, P = 81 W T1= 21 ℃ = 294 K T2=100 ℃ = 373 K Specific…
Q: In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a…
A:
Q: The number of kilocalories in food is determined by calorimetry techniques in which the food is…
A:
Q: You can create ice by adding liquid nitrogen to a container of water. If you want to produce 200g of…
A: mass of ice that has to be created is m1 = 200 g = 0.2 Kg initial mass of water is m2 = 450 g = 0.45…
Q: Suppose that in our lab on calorimetry, 80 g of aluminum at -20° Celcius was added to 120 g of water…
A:
Q: 50.0 g of ice at –20.0 oC is placed in a glass containing 100 g of liquid water at 10.0 oC. Assume…
A: The mass of ice is given as, mi=50 g, The temperature of ice is given as, Ti=20 oC, The mass of…
Q: The specific heat of a substance varies with temperature according to c = 0.24 +0.47T+0.049T2, with…
A: Variation of specific heat with temperature : c = 0.24 + 0.47T + 0.049T2 mass (m) = 7.9 g Initial…
Q: emperature change. -First, the ice reaches 0°C. Then it starts melting while the warmer water
A:
Q: You are heating 310 mL of water to make tea; however, you forget the pot on the stove, and all of…
A: The specific heat (C) and latent heat (L) of a substance of mass (m) that absorbs heat (Q) and its…
Q: How much nitrogen evaporates
A: The heat lost by the ice is gained by the nitrogen and it gets evaporated. It can be represented as,…
Q: A sphere of surface area 1.25 m² and emissivity 1.0 is at a temperature of 100°C. At what rate does…
A: The surface area of the sphere is 1.25 m2.The emissivity is 1.The temperature of the sphere is…
Q: art 2: Problem Solving Questions P 1 (thermodynamics). What energy is required to convert a…
A: The energy required to convert a 3 g cube of ice at 213.15 K(-60°C)to 355.15 K(82°C) consists of…
Q: A block of 10.0 kg of solid gold at its melting point of 1,063.00°C changes phase to liquid gold at…
A: SOlution: Given that m = 10 kg L = 6.44×104 J/kg
Q: One pound of air with an initial temperature of 200F is allowed to expand without flow between…
A: Given: The initial temperature is given as 200oF Pressure is 90 and 15 psia.
Q: Ex(1): What is the amount of heat energy necessary to raise temperature ( 3 kg ) of Aluminum from (…
A:
Q: 21.0 g of copper pellets are removed from a 300C oven and immediately dropped into 70.0 mL of water…
A:
Q: In an insulated container, you combine hot metal with ice. The ice starts at -20 degree C. The…
A: Given : Temperature of ice, Ti = -20oC Temperature of copper, Tc = 900oC Mass of copper, m = 15 kg =…
Q: The concrete slab of a basement is 11m long, 8 m wide and 0.2 m thick. During the winter,…
A: The length of the basement = 11 mwidth =8 mThickness = 0.2 mThe area of the basement Thermal…
Q: A simple solar energy heater is a glass-topped box containing rocks. Sunlight heats the rocks during…
A: Given:- A simple solar energy heater is a glass-topped box containing rocks. Sunlight heats the…
Q: The rate at which a resting person converts food energy is called one’s basal metabolic rate (BMR).…
A: Given The heat of the evaporation of fat is Qe = 400 kcal/h = 400 x 1.163 W = 465.2 W. The energy by…
Q: A 95.0-kg block of ice at 0.00°C breaks off from a glacier, slides along the frictionless ice to the…
A:
In a particular camp stove, only 30% of the energy released in burning gasoline goes to
heating the water in a pot on the stove. How much gasoline must we burn to heat 1.00 L (1.00
kg) of water from 20OC to 100OC and boil away 0.25 kg of it?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A 0.422 g food sample is used to raise the temperature of 14.656 g of water by 45.2 celsius. How many food Calories (kilocalories) of energy does the food contain per gram?The number of kilocalories in food is determined by calorimetry techniques in which the food is burned and the amount of heat transfer is measured. How many kilocalories per gram are there in a 5.00-g peanut if the energy from burning it is transferred to 0.500 kg of water held in a 0.100-kg aluminum cup, causing a 54.9°C temperature increase?Your answer is partially correct. An insulated Thermos contains 190 cm3³ of hot coffee at 80.0°C. You put in a 12.0g ice cube at its melting point to cool the coffee. By how many degrees has your coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though it were pure water and neglect energy exchanges with the environment. The specific heat of water is 4186 J/kg-K. The latent heat of fusion is 333 kJ/kg. The density of water is 1.00 g/cm³. Number 9.5 Units
- Assume Lake Michigan contains 4.90 x 1012 m³ of water, and assume the water's density is that of water at 20°C and 1 atm. (a) How much energy (in J) is required to raise the temperature of that volume of water from 12.2°C to 24.4°C? 4.1E19 From the density of water and the volume, what is the mass of the water? What is specific heat? How is it related to the energy input, mass, and temperature change? Use it to solve for the energy. Be careful with units. J (b) How many years would it take to supply this amount of energy by using a power of 1,400 MW generated by an electric power plant? 926 How is power related to energy and time? Knowing the energy from part (a), can you find the time? Be careful with units. Make sure you convert the time in seconds to years. yrA 155 g copper bowl contains 230 g of water, both at 20.0°C. A very hot 300 g copper cylinder is dropped into the water, causing the water to boil, with 4.05 g being converted to steam. The final temperature of the system is 100°C. Neglect energy transfers with the environment. (a) How much energy (in calories) is transferred to the water as heat? 8.6 X kcal (b) How much energy (in calories) is transferred to the bowl? 55 X kcal (c) What is the original temperature of the cylinder? 553.6 X °C Did you use the idea of conservation of energy? That is, did you equate the sum of the energy transfers to zero? For the bowl and cylinder, did you substitute the expression relating an energy transfer, the specific heat, the mass, and the temperature change? For the water, did you use the same expression to get the water to the boiling point? Did you also include an expression for the heat of vaporization? Did you use the given final temperature for each of the three materials?What is the ratio of the energy required to warm 125 g of Ice (0.0 \deg C) to body temperature (37 \deg C) to warming the same amount of water through the same temperature change? Answer format is the number Eice/Ewater = (2 significant figures) Latent Heat of Fusion of Water: 335, 000 J/kg Specific Heat Capacity of Water: 4186 J/kg/\deg C
- A 160 g copper bowl contains 120 g of water, both at 25.0°C. A very hot 420 g copper cylinder is dropped into the water, causing the water to boil, with 5,00 g being converted to steam. The final temperature of the system is 100°C. Neglect energy transfers with the environment. (a) How much energy is transferred to the water as heat? (b) How much to the bowl? (c) What is the original temperature of the cylinder? The specific heat of water is 1 cal/g-K, and of copper is 0.0923 cal/g-K. The latent heat of vaporization of water is 539 Cal/kg.A small electric immersion heater is used to heat 79 g of water for a cup of instant coffee. The heater is labeled “72 watts" (it converts electrical energy to thermal energy at this rate). Calculate the time required to bring all this water from 20°C to 100°C, ignoring any heat losses. (The specific heat of water is 4186 J/kg-K.) Number UnitsAn ice block of mass 1.2000000000000002 kg at an initial temperature of –11 ∘C is put into a copper pot of mass 2.5 kg containing 4.3 L of water at 21 ∘C. If you heat up the pot, what is the amount of energy (in J) you need to convert all the ice and the water into steam? (Assume that no energy is lost from the system.) You may need some or all of the following constants: The specific heat of ice is 2200 J/kg ∘C, the specific heat of copper is 386 J/kg ∘C and the specific heat of water is 4186 J/kg ∘C. The latent heat of fusion of ice is 334000 J/kg and the heat of vaporization for water is 2256000 J/kg .
- One strategy when on a diet is to drink ice water. The body must burn calories to warm the water from 32 °F to a body temperature of 98.6 °F. Assume a dieter drinks 2.4 kg (2.4 L) of ice water every day. How much energy, in Cal, does the dieter's body need to provide in order to warm the 2.4-L-water. (The specific heat of water is 4186 J/kg • °C; 1J = 0.000239 Cal.) Show your work.A 200 g iceball can be launched from a custom launcher at 250 m/s. The iceball is initially at -5oC when it is shot vertically upwards, and by the time the iceball starts to fall down again 10 g of the ice has melted away. What is the maximum height of the iceball? The specific heat of ice is 2100 J/(kg oC) and the latent heat of fusion for ice is 334,000 J/kg.A typical nuclear reactor generates 1000 MW of electric energy. In doing so, it produces “waste heat” at a rate of 2000 MW, and this heat must be removed from the reactor. Many reactors are sited next to large bodies of water so that they can use the water for cooling. Consider a reactor where the intakewater is at 18°C. State regulations limit the temperature of the output water to 30°C so as not to harm aquatic organisms. How many kilograms of cooling water have to be pumped through the reactor each minute?