0.100 mol of an ideal gas is heated from 10 to `20^@C` keeping its (a) volume constant (b) pressure constant. Let `Delta U_a` and `Delta U_b` denote the change in the internal energy of the gas due to process (a) and (b) respectively. Then which of the following shall be true

Options

A. `Delta U_a = Delta U_b`
B. `Delta U_a gt Delta U_b`
C. `Delta U_a lt Delta U_b`
D. `Delta U_a = Delta U_b =0`

Answer

A

Explanation

Internal energy is point function not path function
`:. Delta U_a = Delta U_b`