In a cyclic process, heat transfers are +14.7 kJ ,-25.2 kJ -3.56 kJ and +31.5 kJ . What is the net work done in the net cyclic process?

Question

In a cyclic process, heat transfers are +14.7 kJ ,-25.2 kJ -3.56 kJ and +31.5 kJ . What is the net work done in the net cyclic process? (A) 10 kJ (B) -10 kJ (C) -17.44 kJ (D) +17.44 kJ

Tardigrade Admin · Accepted Answer

In the cyclic process Δ W text cyc +Δ q text cyc =0 or Δ W text cyc =-Δ q cyc =-[14.7-25.2-3.56+31.5] kJ or Δ W cyc =-17.44 kJ

Q. In a cyclic process, heat transfers are $+ 14.7 k J, - 25.2 k J$ $- 3.56 k J$ and $+ 31.5 k J .$ What is the net work done in the net cyclic process?

10 kJ

-10 kJ

-17.44 kJ

+17.44 kJ

In the cyclic process $Δ W_{cyc} + Δ q_{cyc} = 0$

or $Δ W_{cyc} = - Δ q_{cyc} = - [14.7 - 25.2 - 3.56 + 31.5] k J$

or $Δ W_{cyc} = - 17.44 k J$

Q. In a cyclic process, heat transfers are +14.7kJ,−25.2kJ −3.56kJ and +31.5kJ. What is the net work done in the net cyclic process?