Question

In a reversed Carnot cycle working on vapour

• A. isothermal work of compression is equal to isothemal work of expansion
• B. there is no work done during isentropic process .
• C. there is no work done during isothermal process
• D. None of these

Answer 1

The correct option is C there is no work done during isothermal process

$W_c=v_1\left(\Delta P\right)$

$W_e=v_g\left(\Delta P\right)$

Since $v_1=v_g$

$W_c=W_e$

In isothermal process, T = C

Since , $h=f\left(T\right)$

h = constant in t = C process

So work done is zero