NEET2015PhysicsThermodynamicsActual
A thermodynamic process is carried out from an original state D to an intermediate state E by the linear process shown in figure. The total work is done by the gas from D to E to F is
Options
- A100 ~J
- B800 ~J
- C300 ~J
- D250 ~J
Correct answer
B. 800 ~J
Step-by-step solution
Total work done by the gas from D to E to F is equal to the area of D E F . The area of D E F= 1 2 D F E F Here, D F= change in pressure =600-200 =400 ~N ~m ⁻² Also, E F= change in volume =7 ~m ^3-3 ~m ^3=4 ~m ^3 Area of D E F= 1 2 400 4=800 ~J Thus, the total work done by the gas from D to E to F is 800 ~J .