Consider the following statements:1. Free expansion of a gas2. Slow heating of oil from a constant temperature source3. Evaporation of water at its saturation temperature by a source at the same temperature4. Isentropic compression of an ideal gasWhich of these processes are irreversible?

Consider the following statements:1. Free expansion of a gas2. Slow h

1.	Consider the following statements:1. Free expansion of a gas2. Slow heating of oil from a constant temperature source3. Evaporation of water at its saturation temperature by a source at the same temperature4. Isentropic compression of an ideal gasWhich of these processes are irreversible?
A.	1 and 2
B.	2 and 3
C.	3 and 4
D.	1 and 4
Answer» B. 2 and 3

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Consider the following statements:1. Free expansion of a gas2. Slow heating of oil from a constant temperature source3. Evaporation of water at its saturation temperature by a source at the same temperature4. Isentropic compression of an ideal gasWhich of these processes are irreversible?

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