Question

Which of the processes described below are reversible? *

2 points

(a) The increase in temperature of an iron rod by hammering it.

(b) A gas in a small container at a temperature T1, is brought in contact with a big reservoir at a higher temperature T2 which increases the temperature of the gas.

(c) A quasi-static isothermal expansion of an ideal gas in cylinder fitted with a frictionless piston.

(d) An ideal gas is enclosed in a piston cylinder arrangement with adiabatic walls. A weight w is added to the piston, resulting in compression of gas.​

Answer 1

Explanation:

a) Reversible

b) Reversible

c) Irreversible

d) Irreversible