An ideal gas has a gas constant R =0.3 kJ/kg-K and a
Chapter 4, Problem 158P(choose chapter or problem)
Problem 158P
An ideal gas has a gas constant R =0.3 kJ/kg-K and a constant-volume specific heat cv =0.7 kJ/kg-K. If the gas has a temperature change of 100°C, choose the correct answer for each of the following:
1. The change in enthalpy is, in kJ/kg
(a) 30
(b) 70
(c) 100
(d) insufficient information to determine
2. The change in internal energy is, in kJ/kg
(a) 30
(b)70
(c) 100
(d) insufficient information to determine
3. The work done is, in kJ/kg
(a) 30
(b) 70
(c) 100
(d) insufficient information to determine
4. The heat transfer is, in kJ/kg
(a) 30
(b) 70
(c) 100
(d) insufficient information to determine
5. The change in the pressure-volume product is, in kJ/kg
(a) 30
(b) 70
(c) 100
(d) insufficient information to determine
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