For each answer, please briefly explain the reasoningbehind the answer.
1. True or False: For heat pumps, wcycle, irreversible >wcycle, reversible
2. True or False: All pure substances must have S = 0 at T = 0K.
3. True or False: The maximum theoretical efficiency of areversible heat engine will decrease if the working substance is areal gas instead of an ideal gas.
4. A reversible process is carried out on an ideal gas NOT underconstant pressure conditions. Given that for this process ΔS > 0and ΔH = 0,
a. the system absorbs heat and expands during the process.
b. the system absorbs heat and contracts during the process.
c. the system loses heat and expands during the process.
d. the system loses heat and contracts during the process.
e. cannot be determined from the information given.
