Suppose 1400 J of heat are added to 3.4 molof argon gas at a constant pressure o

Question

Suppose 1400 J of heat are added to 3.4 molof argon gas at a constant pressure of 120 kPa. (Assume that theargon can be treated as an ideal monatomic gas.) (a) Find the change in internal energy.
--------J
(b) Find the change in temperature for this gas.
--------- K
(c) Calculate the change in volume of the gas.
-------- m3 (a) Find the change in internal energy.
--------J
(b) Find the change in temperature for this gas.
--------- K
(c) Calculate the change in volume of the gas.
-------- m3

Explanation / Answer

For Argon Cp =20.786 T =1400/20.786*3.4 =67.35/3.4 =19.81K and change in internal energy =(12.471*67.35)*3.4=840J so work done =1400-840 =560J at const Pressure so PV =560 =>V =560/120000=4.67L =0.00467

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