A thermodynamic system undergoes a cyclic process ABC as shown in the diagram. The work done by the system per cycle is

Question

A thermodynamic system undergoes a cyclic process ABC as shown in the diagram. The work done by the system per cycle is (A) −750 J (B) 750 J (C) 1250 J (D) − 1250 J

Tardigrade Admin · Accepted Answer

Work done =p×Δ v Work done = Area of triangle ABC ∴ W=(1/2)(10-5)×(100-400)=(5/2)×(-300)=-750 J The negative sign means the work is done by the system.

Q. A thermodynamic system undergoes a cyclic process ABC as shown in the diagram. The work done by the system per cycle is

−750 J

750 J

1250 J

− 1250 J

Work done = $p \times Δ v$
Work done = Area of triangle ABC
$∴ W = \frac{1}{2} (10 - 5) \times (100 - 400) = \frac{5}{2} \times (- 300) = - 750 J$
The negative sign means the work is done by the system.

Q. A thermodynamic system undergoes a cyclic process ABC as shown in the diagram. The work done by the system per cycle is

−750 J

750 J

1250 J

− 1250 J

Work done =p×Δv Work done = Area of triangle ABC ∴W=21​(10−5)×(100−400)=25​×(−300)=−750J The negative sign means the work is done by the system.

Work done = $p \times Δ v$
Work done = Area of triangle ABC
$∴ W = \frac{1}{2} (10 - 5) \times (100 - 400) = \frac{5}{2} \times (- 300) = - 750 J$
The negative sign means the work is done by the system.