1. In an isobaric compression of an ideal gas,
(a) No heat flows into the gas.
(b) The internal energy of the gas remains constant.
(c) No work is done on the gas.
(d) Work is done on the gas.
(e) Work is done by the gas.
2. Which is possible: converting (i) 100 J of work entirely into 100 J of heat, (ii) 100 J of heat entirely into 100 J of work?
(a) Only (i) is possible.
(b) Only (ii) is possible.
(c) Both (i) and (ii) are possible.
(d) Neither (i) nor (ii) is possible.