Question

One mole of an ideal monoatomic gas at temperature ( T₀ ) expands slowly according to the law ( PV = constant ). If the final temperature is ( 2T₀ ), heat supplied to the gas is
a) ( 3/2 R T₀ )
b) ( 2R T₀ )
c) ( 5/2 R T₀ )
d) ( 3R T₀ )