An unknown metal with a mass of 2 kg is heated from 50°C to 100°C. If the amount of heat energy spent is 76 kJ, identify the metal.
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Q: An aluminum block with a heat capacity of 4050 J/°C is heated from 20.0°C to 185.0°C. The material…
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Q: Determine the specific heat capacity of the metal.
A: The metal’s specific heat capacity can be determined by the calorimetry principle as, Here, Q, m,…
Q: An object that has a mass of 75.0 g is heated from 50 degrees Celsius to 93 degrees Celsius. If it…
A: Mas of object is m=75 g Initial temperature is Ti=50°C Final temperature is Tf=93°C Heat energy…
Q: A student measures the following data in a calorim- etry experiment designed to determine the…
A: given: initial temperature of water and calorimeter = 70o Cmass of water = 0.400 kgmass of…
Q: 20.0 g of milk at a temperature of 2.00° C is added to 300.0 g of coffee at a temperature of 170° C.…
A: Write the given values of this problem. m1=20 g or 0.02 kgT1=2°C or 275 Km2=300 g or 0.3 kgT2=170°C…
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Q: A 0.52 kg hammer strikes a 28 g copper nail into a wood board. The nail is horizontally aligned and…
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Q: Initially you have mwater=4.2kg of water at Twater=66 degrees celcius in a insulated container. You…
A: Recall Q=mc∆T Also, principle of calorimetry. Heat lost by hotter body=heat gained by colder body
Q: A student measures the following data in a calorimetry experiment designed to determine the specific…
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Q: The specific heat of copper is roughly three times as great as the specific heat of gold. Which of…
A: The specific heat capacity of a substance is the amount of energy required to raise the temperature…
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Q: The number of kilocalories in food is determined by calorimetry techniques in which the food is…
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Q: A bullet made of silver (specific heat 234 J/kg deg C) traveling at 370 m/s hits a wooden post and…
A: Data provided: Specific heat (c) = 234 J/kg.°C Speed (v) = 370 m/s Heat trapped = 38% of Kinetic…
Q: A student measures the following data in a calorimetry experiment designed to determine the specific…
A: Given: mass of water mw = 0.4 kg mass of calorimeter mc = 0.04 kg mass of Aluminum mAl = 0.2…
Q: A 0.5-kg block of a pure material is heated from 0°C to 93.75°C by the addition of 6 kJ of energy.…
A: GivenMass of water, m = 0.5 kg Energy of the material = 6 KJ Initial temperature, T1=00C Final…
Q: In a calorimetry experiment, a hot piece of metal 1s placed into a calorimeter containing cold…
A: For metal m=.095 kgTi=320 KTf=295 KcmetalFor water mw=.305 kgTi=290 KTf=295 Kcw=4184 jkgK
Q: An ice bag containing 0°C ice is much more effective in absorbing heat than one containing the same…
A: (a) The heat required to raise the temperature of the water can be determined as follows.
Q: Questions 13 through 14 pertain to the situation described below: A 73.0-kg man is in an environment…
A: (13) Given data The mass of the man is m = 73 kg The environment temperature is T∞ = -10°C The…
Q: An unknown piece of metal is heated to 98.0°C and dropped into a coffee cup calorimeter containing…
A: Given:- An unknown piece of metal is heated to 98.0°C and dropped into a coffee cup calorimeter The…
Q: A piece of metal was at a temperature of 27oC when it was found to be emitting thermal radiation at…
A: Let T1 and T2 denote the temperature, a denotes the constant, P1 and P2 denote the rate of thermal…
Q: A bullet made of silver (specific heat 234 J/kg deg C) traveling at 380 m/s hits a wooden post and…
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Q: hat quantity of joules of energy are needed to transform 11 kg of ice at 0.00°C to vapor at 155°C?…
A: Given Mass of ice is m=11 kg Specific heat of water is cwater = 4186 J/kg C° Specific heat of…
Q: An unknown material with a mass of 1 kg is heated from 600C to 1000C. The amount of heat energy…
A: Whenever a system undergoes temperature change there will be a change in heat energy. This change in…
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- A piece of metal with a mass of 5.05 g originally at 25.5°C is dropped into 25 g of water originally at 82.7°C. The final temperature of the metal and the water is 81.5°C. Determine the specific heat of the metal and consult Table 5.2 to determine its possible identity.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?A 365-g sample of an unknown (nongaseous) material experiences a 16.0°C increase in temperature after absorbing 9.93 ✕ 103 J of energy. (a) What is the specific heat of this material? J/(kg · °C)(b) Which substance listed in the specific heat and molar specific heat table best matches the specific heat of this unknown material? mercurysilver brassgraniteglassaluminumwoodseawater
- a sample of beryllium (1820J/kgC) at 20 degrees celsius into a 0.22kg glass beaker also at 20 degrees celsius. Water of mass 0.3kg and temperature 80 degrees celsius is poured over the beryllium. If the thermal equilibrium temperature of the closed system is 40 degrees celsius, what is the mass of the beryllium?A blacksmith cools a chunk of iron initially at 650 degrees celsius by trickling water from a jug over it. The water in the jug has a temperature of 15 degrees celsius. All of the water boils away and the iron chunk cools down 120 degrees celsius. If, in total, he poured 0.90 kg of water over the iron, what is the mass of this chunk of iron?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 dog loses a lot of heat by panting. The air rushing over the upper respiratory tract causes evaporation and thus heat loss. A dog typically pants pants at a rate of around 304 pants per minute. As a rough calculation, assume that one pant causes 0.0400 g of water to be evaporated from the respiratory tract. What is the rate of heat loss for the dog by panting? The heat of vaporization for water is 2256 kJ/kg.In an insulated vessel, 239 g of ice at 0°C is added to 635 g of water at 15.0°C. (Assume the latent heat of fusion of the water is 3.33 x 10° J/kg and the specific heat is 4,186 J/kg · °C.) (a) What is the final temperature of the system? °C (b) How much ice remains when the system reaches equilibrium?A student measures the following data in a calorimetry experiment designed to determine the specific heat of aluminum. (Do not assume atmospheric pressure.) Initial temperature of water and calorimeter: 70°C Mass of water: 0.400 kg Mass of calorimeter: 0.040 kg Specific heat of calorimeter: 0.63 kJ/kg · °C Initial temperature of aluminum: 26.6°C Mass of aluminum: 0.200 kg Final temperature of mixture: 65.8°C Use these data to determine the specific heat of aluminum.