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23 Nov 2019

During an adiabatic process, the temperature of 3.92 moles of a monatomic ideal gas drops from 485C to 205C. For this gas, find (a) the work it does, (b) the heat it exchanges with its surroundings, and (c) the change in its internal energy.

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Suppose 1800J of heat are added to 3.6 mol of argon gas at a constant pressure of 120 kPa. Find the change in internal energy and temperature for this gas. Calculate the change in volume of the gas. Treat argon as if it is an ideal monatomic gas.

In this problem you are to consider an adiabatic expansion of an ideal diatomic gas, which means that the gas expands with no addition or subtraction of heat.
Assume that the gas is initially at pressure , volume , and temperature . In addition, assume that the temperature of the gas is such that you can neglect vibrational degrees of freedom. Thus, the ratio of heat capacities is .
 
Note that, unless explicitly stated, the variable should not appear in your answers. If needed, use the fact that for an ideal diatomic gas.
 
 
A) Find an analytic expression for , the pressure as a function of volume, during the adiabatic expansion.
 
Express the pressure in terms of V and any or all of the given initial values , , and .
 
 
B) At the end of the adiabatic expansion, the gas fills a new volume , where . Find , the work done by the gas on the container during the expansion.
Express the work in terms of , , and . Your answer should not depend on temperature.
 
 
C) Find , the change of internal energy of the gas during the adiabatic expansion from volume to volume .
Express the change of internal energy in terms of , , and/or .

Under constant pressure, the temperature of 2.16 mol of an ideal monatomic gas is raised 10.5 K. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ?Eint in the internal energy of the gas, and (d) the change ?K in the average kinetic energy per atom?

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