One mole of helium gas in a cylinder is allowed to expand adiabatically. During the expansion its temperature falls from 300 K to 230 K. How much work energy flows in this expansion? Remember that for an adiabatic process Q = 0. (Be sure to give both the correct magnitude and the correct sign.) The amount of work energy that flows during expansion is_______ J.

One mole of helium gas in a cylinder is allowed to expand adiabatically. During the expansion its temperature falls from 300 K to 230 K. How much work energy flows in this expansion? Remember that for an adiabatic process Q = 0. (Be sure to give both the correct magnitude and the correct sign.) The amount of work energy that flows during expansion is_______ J.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter3: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 97CP: The insulated cylinder shown below is closed at both ends and contains an insulating piston that is...

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The insulated cylinder shown below is closed at both ends and contains an insulating piston that is flee to move on frictionless bearings. The piston divides the chamber into two compartments containing gases A and B. Originally, each compartment has a volume of 5.0102 m3 and contains a monatomic ideal gas at a temperature of and a pressure of 1.0 atm. (a) How many moles of gas are in each compartment? (b) Heat Q is slowly added to A so that it expands and B is compressed until the pressure of both gases is 3.0 atm. Use the fact that the compression of B is adiabatic to determine the final volume of both gases. (c) What are their final temperatures? (d) What is the value of Q?
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0.5 moles of cinnamaldehyde gas that has an initial volume of ten liters expands under the following conditions: 185°F and 800mmHg external pressure. a. How much work is done? Express your answer in L atm. b. Assuming that the container is cylindrical with a base radius of 10cm and can only expand vertically, how much kinetic energy does a single molecule possesses if it travels from base to base of the expanded cylinder in 10us? Express your answer in J
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