Question
Question: A steam changes from the state (P<sub>1</sub>, V<sub>1</sub>) to (P<sub>2</sub>, V<sub>2</sub>) as s...
A steam changes from the state (P1, V1) to (P2, V2) as shown in the fig. What is the work done by the system ?
A
7.5 × 105 joule
B
7.5 × 105 ergs
C
12 × 105 joule
D
6 × 105 joule
Answer
12 × 105 joule
Explanation
Solution
N1→2 = + Area of trapezium
= 21× [6 × 105] × 4
= 12 × 105 J