Question

$C_{p}>C_{v}$ , as in the case of $C_{p}$ :-

• A. more heat is required to increase the internal energy
• B. heat is required to do work against external pressure also
• C. more heat is required to do external work
• D. more heat is required to do external work as well as for increase in internal energy

Answer 1

Answer: (D)

According to Mayer's formula
$C_{p}-C_{v}=R$
$\therefore \mu C_{p}\Delta T=\mu C_{v}\Delta T+\mu R\Delta T$
$\Delta Q_{p}=\Delta Q_{v}+\Delta W$