1) If the volume and pressure in state a are 7.30×10−2 m3 and 1.08×105 Pa , and those in state b are 0.1080 m3 and

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1) If the volume and pressure in state a are7.30×10−2 m3 and1.08×105 Pa , and those in state b are0.1080 m3 and 1.39×105 Pa , what is the work W done by the gas in thisprocess? Assume that the gas may be treated as ideal.Express your answer in joules.
2) Nitrogen gas in an expandable container is cooledfrom 55.0 ∘C 12.0 ∘C with the pressureheld constant at 3.40×105 Pa . The total heatliberated by the gas is 2.65×104 J . Assumethat the gas may be treated as ideal.
a)
Find the number of moles of gas.
b)
Find the change in internal energy of the gas.
c)
Find the work done by the gas.
d)
How much heat would be liberated by the gas for the sametemperature change if the volume were constant?