The heat of vaporization of water is 40.7 k/>mol.(a) How much heat (in kilojoules) is required to vaporize3.00 mol of H2O?(b) How much heat (in kilojoules) is released when 320 gof steam condenses?

Q: When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are…

A: Adiabetic process does not exchange heat from system to surrounding or surrounding to system.

Q: On a hot day, the temperature of a 76,000 L swimming pool increases by 1.10°C. What is the net heat…

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Q: If a leaf is to maintain a temperature of 40.0°C , it must lose 253 W/m2 by transpiration…

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Q: During heavy exercise, the body pumps 2.00 L of blood per minute to the surface, where it is cooled…

A: The expression for the required rate of heat transfer is,

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…

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Q: in a living room a person has a temperature of 35C .If the room. temperature is 30C what is the body…

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Q: A 0.1375-g sample of magnesium is burned in a constant-volume bomb calorimeter that has a heat…

A: Solution:-Given thatmass of magnesium (m)=0.1375 gHeat capacity of constant bomb calorimeter…

Q: b). A cube of length 24cm is heated through a change in temperature of 80°C. If the coefficient of…

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Q: A person inhales and exhales 2.00 L of 37.0C air, evaporating 4.00 X 10-2 g of water from the lungs…

A: (a) The heat transfer occurs due to evaporation in each breath is, Q=mLv Substituting the values,…

Q: The maximum amount of water an adult in temperate climates can perspire in one hour is typically 1.8…

A:

Q: How much steam with a temperature of 100° C must be added to 0.250 kg of ice at its melting point to…

A:

Q: 6.5 m3 of air at a pressure of 170000 Pa at 75O C is cooled to 41O C at a pressure of 130000 Pa .…

A: Given data:  Initial Volume (V1) = 6.5 m3 Initial Pressure (P1) = 170000 Pa Initial temperature (T1)…

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: A small electric immersion heater is used to heat 65 g of water for a cup of instant coffee. The…

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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: 950 g of preheated pizza (at 295.15 K) cools down after 45 minutes left in the kitchen. If the…

A: As per Newtown's law of cooling the rate at which any body cools is proportional to the difference…

Q: On a hot day, the temperature of a 28,000 L swimming pool increases by 1.10°C. What is the net heat…

A: Given : Volume (V) = 28,000 L = 28 m3 Increase in temperature (∆T) = 1.10°C

Q: A 0.136m-thick sheet of ice covers a lake. The air temperature at the ice surface is -15.4\deg C. In…

A:

Q: A copper block is removed from 320ºC oven and immediately dropped into 1.75 L of water at 20ºC.in an…

A:

Q: At very low temperatures the molar heat capacity of rock salt varies with temperature according to…

A: Given, Heat capacity of rock saltC=kT3θ3

Q: Two 20.0 g ice cubes at -13.0 °C are placed into 245 g of water at 25.0 °C. Assuming no energy is…

A: Given:Total mass of ice cubes Initial temperature of ice cubes Mass of water Initial temperature of…

Q: A container holds 0.70 g of argon at a pressure of 7.5 atm. A) How much heat is required to…

A: SOlution: given that m = 0.7 g P = 7.5 atm

Q: naked without a significant

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Q: a) A 650 joule of heat energy is transferred to 46 gram of mercury. By how much does the temperature…

A: a) Q = 650 J , m = 46 gram , c = 0.0334 cal/g°C = 0.0334 x 4.184 = 0.1397 J/g°C Q = mc∆T Therefore,…

Q: (a) Calculate the rate of heat conduction (in W) through house walls that are 11.5 cm thick and that…

A:

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 cube of length 10cm is heated through a change in temperature of 70 oC. If the coefficient of…

A: Given: The length of the cube is 10 cm. The change in temperature is 70oC. The linear expansion…

Q: Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is…

A: Volume = 148000 * 39100 * 247 m3  = 1.43 * 1012 m3 Mass = volume * density  = 1.43 * 1012 * 917  =…

Q: When it rains, water vapor in the air condenses into liquid water, and energy is released. (a) How…

A: length, Area,

Q: If 100.4KJ of heat are added to 6.20 *10 ^2g of water at 22 degrees Celsius, what is the final…

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Q: Latent Heat Substance (3/kg) Steam + water 2,260,000 Ice + water 333,000

A: Rate of cooling is equal to the rate of heat transfer. It depends on convection heat coefficient,…

Q: In 1986, a gargantuan iceberg broke away from the Ross Ice Shelf in Antarctica. It was approximately…

A: Given: Dimension of iceberg  Length(l)=160km Width(b)=40km Thickness(t)=250m mass(m)=1.47×1015kg…

Q: Suppose 8.50 x 10 ) of energy are transferred to 1.79 kg of ice at 0°C. The latent heat of fusion…

A:

Q: (a) Calculate the rate of heat conduction through house walls that are 13.0 cm thick and that have…

A: The rate of heat conduction is given by Qt=kAT2-T1d