An ideal gas at temperature ( T₁ ) undergoes expansion under adiabatic condition to attain temperature ( T₂ ) due to the expansion. The expression for work done is:
a) ( 5/2 ) ( nRT₁ )
b) ( 3/2 ) ( nRT₁ )
c) ( 5/2 ) ( nRT₂ )
d) ( 3/2 ) ( nRT₂ )