practice exam1 - 1. Two moles of an ideal gas undergo a...

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1. Two moles of an ideal gas undergo a reversible cyclic process 1 Ø 2 Ø 3 Ø 1 shown below. A . What is the total work W done on the gas? B . What is the total heat q absorbed by the gas? C . What is S in this process? D . What is H in this process?
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E, F, G, and H: answer questions A, B, C, D assuming that the gas is not ideal and is described by the following equation of state: () P Vb R T −= E. F. G. H.
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2 . Two moles of an ideal gas undergo a process described by the following equation: V = a T 2 How does the pressure (P) depend on the temperature (T) in this process?
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3. Three kilograms of water (H 2 O) at T=10 ± C are mixed with 1 kg of water at T=30 ± C (at constant pressure). The heat capacity of one kg of water is C p = 1 kcal kg -1 K -1 (note the units) and is assumed to be temperature independent. A . What is the final temperature after mixing? B . What is the change of entropy S in this process? C * . Three kilograms of H 2 O at T=10 ± C are mixed with 1 kg of D 2 O at T=30 ± C. Assuming that the C p value of D 2 O is the same as that of H 2 O,
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practice exam1 - 1. Two moles of an ideal gas undergo a...

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