Question
Question: An ideal gas expands in volume from 1 × 10–3 m3 to 1 × 10–2 m3 at 300 K against a constant pressure ...
An ideal gas expands in volume from 1 × 10–3 m3 to 1 × 10–2 m3 at 300 K against a constant pressure of 1 × 105 Nm–2 . The work is :
A
– 900 J
B
– 900 Kj
C
270 kJ
D
- 900 kJ
Answer
– 900 J
Explanation
Solution
W = – PDV
= – 1 × 105 (1 × 10–2 – 1 × 10–3)
= – 1 × 105 × 9 × 10–3 = – 900 J.