Liquid helium has a very low boiling point, 4.2 K, as well as a low latent heat of vaporization, equal to 2.09 x 104 J/kg. If energy is transferred to a container of liquid helium at the boiling point from an immersed electric heater at a rate of 10.0 W, how long does it take to boil away 2.00 kg of the liquid?

Q: A 1.60-mol sample of hydrogen gas is heated at constant pressure from 292 K to 410 K. (a) Calculate…

A: Given, Sample of hydrogen = 1.6 mol Heated at constant pressure from 292 K to 410 K We need to…

Q: You have one mole of a monoatomic van der Waals gas that undergoes a free expansion from 1.0 x 10-3…

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Q: A steam pipe is covered with 1.25 cm thick insulating material of thermal conductivity 0.200 W / m.…

A: Given:- Length of material = 1.25 cm thick = 0.0125 m k= 0.200 W/m.oc = 0.200 * 100 * 4.186 = 83.7…

Q: A thermally isolated system consists of 1 mol of helium gas at 100 K and 1 kg of a solid (c = 24.9…

A: Given that: n1=1 moln2= 1 kg                   T1=100KT2= 200K                   c1=32Rc2=24.9…

Q: The specific heat of water is 4186 J/kg c°. How much does the internal energy of 200 g of water…

A:

Q: (a) How much energy is required to change a 52.0 g ice cube from ice at - 8.0°C to water at 42°C?

A: Total energy (Q) required to change ice temperature from -8 degrees celsius to 42 degree celsius…

Q: A workshop with well-insulated walls and containing 800 m of air at 305 kK is ted at constant…

A: Write the given values of the problem- Volume=800 m3 Temperatue=305 k ∆T=2.90°CHeight=hh=3.10 m

Q: An iron block (c = 0.450 J/gºC) is initially at 60.0 ºC. The block is then submerged into 100.0 g of…

A: Given : Capacity of iron, CFe = = 0.450 J/gºC Mass of iron = m gram Temperature of iron, TFe = 60° C…

Q: A bicycle tire whose volume is 4.1 x 104 m³ has a temperature of 300 K and an absolute pressure of…

A: Let the initial pressure and volumes be P1 and V1 and final pressure and volumes be P2 and V2. Thus,…

Q: Jill takes in 0.0270 mol of air in a single breath. The air is taken in at 20.0°C and exhaled at…

A: Given, Jill takes in 0.0270 mol of air in a single breath. The air is taken in at 20.0°C and exhaled…

Q: Jill takes in 0.0270 mol of air in a single breath. The air is taken in at 20.0°C and exhaled at…

A:

Q: A 0.264-kg coffee mug is made from a material that has a specific heat capacity of 907 J/kg C° and…

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Q: A 0.281-kg coffee mug is made from a material that has a specific heat capacity of 943 J/kg Cº and…

A: we will be simply using the concept of calorimetry to solve this problem which is basically the…

Q: When water boils in a pot with a loose lid, the increased pressure forces the lid upward, releasing…

A: m = 0.25 Kgh= 0.005 m   Part (A) We need to find word done by the steam as the lid moves upward Part…

Q: A 2.9 kg lump of aluminum is heated to 93°C and then dropped into 8.0 kg of water at 5.0°C. Assuming…

A: Given Mass of the aluminum lump is ma=2.9 kg Mass of water is mw=8.0 kg Temperature of the aluminum…

Q: Two moles of an ideal gas have a pressure of 2.0 atm and a temperature of 127 °C. If the gas is then…

A: Given: n=2 mol P1=2 atm T=1270 C P2=4.0 atm T2=5270C Formula used:

Q: 2.5 mol of an ideal gas expands isothermally from an initial volume of 50 L to a final volume of 66…

A:

Q: What is the final temperature of 269 g of hot coffee initially at 89.0°C if 1.70 g evaporates from…

A: Heat lost by the coffee is equal to the heat gained by the steam. Thus, Here, mC, c, T, ms, and L…

Q: Two moles (2.0 mol) of ideal gas at 8.0 × 105 Pa are contained in an cylinder with a movable piston.…

A: Initial number of moles,  Initial pressure,  Number of moles leaving,

Q: 0.578 mol sample of Kr gas is confined in a 14.7 liter container at 36.7 °C. If the temperature of…

A: If the temperature of the gas sample is raised to 56.9 C holding the volume constant, the average…

Q: In the extrusion of cold chocolate from a tube, work is done on the chocolate by the pressure…

A: By condition,

Q: A typical weather balloon is made of a thin latex envelope that takes very little force to stretch,…

A:

Q: You are boiling water in a pot on the stove for your tea. Being the brilliant scientist you are, you…

A: Given. The 0.1 kg of water in a pot is boiling at 100 degrees celsius. In the process of boiling the…

Q: A 0.253-kg coffee mug is made from a material that has a specific heat capacity of 944 J/kg C° and…

A: The total heat energy taken by the cup and water Q=mcupCcup∆T+mwaterCwater∆T=mcupCcup+mwaterCwater∆T…

Q: Suppose a tank contains 523 m³ of neon (Ne) at an absolute pressure of 1.01x105 Pa. The temperature…

A:

Q: A cylinder of cross sectional area 0.0356 m^2 is filled with an ideal monoatomic gas. A mass of 43.9…

A: Calculate the change in volume. ∆V=π4d2h1-h2=Ah1-h2=0.0356×0.18-0.65=-0.016732 m3

Q: Estimate the amount of energy required to increase the temperature of a tungsten block of 0.250 g…

A: The amount of heat energy required to raise the temperature of a substance depends on the mass of…

Q: A 0.298-kg coffee mug is made from a material that has a specific heat capacity of 921 J/kg C° and…

A: The knowns in this problem are: mass of the coffee mug (m1) = 0.298 kg, specific heat capacity of…

Q: 2.40 moles of nitrogen gas at 252 K are kept in a container. (a) If the temperature of the gas is…

A:

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 sealed container isolated from its environment holds 0.735-kg of water at 13.5°C. A heater inside…

A:

Q: How much work is done on the steam when 1.32 mol of water at 100°C boils and becomes 1.32 mol of…

A: Given that, latent heat of vaporization of water  =2.26 x 106 J/kg pressure  =1 atm =1.013 x 105…

Q: 3.3 moles of neon (an ideal gas) expand isothermally from 0.136 to 0.598 m3. An amount of heat 5841…

A:

Q: A 53.5 g silver block initially at 8.0°C is submerged in water initially at 83.5°C in an insulated…

A:

Q: Three moles of an ideal gas at 298k is held inside a 2cm diameter vertical cylinder by a…

A: The initial temperature of the gas is 298 K. The diameter of the cylinder is 2 cm. The mass of the…

Q: The p-V diagram in the figure shows two paths along which a sample of gas can be taken from state a…

A: here we use first law of thermodynamics

Q: Three moles of an ideal monatomic gas are at a temperature of 383 K. Then 2892 J of heat is added to…

A: Apply the thermodynamics first law and substitute the corresponding values to calculate the change…

Q: A storage building with well-insulated walls and containing 750 m³ of air at 275 K is heated at…

A:

Q: Water with a mass of mW = 0.400 kg and temperature of TW = 18.5°C is poured into an insulated bucket…

A:

Q: A hollow container is filled with an ideal gas. The container is designed to maintain a constant…

A: In this question we are given that a hollow container is filled with an ideal gas. The container is…

Q: A sample of 5.25 kilograms of water at 6.00°C is placed in the freezer. Assuming all energy removed…

A:

Q: How much heat is required to increase the temperature of 2.30 moles of an ideal monatomic gas by…

A: Number of moles, Gas constant, Increase in temperature, For the monatomic gas the specific heat at…

Q: A cylinder-piston system with radius r= 12.0cm is filled with steam to a pressure of Pi= 1.0atm. The…

A: Assume the steam to be an ideal gas. a).The initial volume of the system is, Vi = πr2hi = 0.0038 m3…