At 1 bar pressure, the volume of a fixed amount of hydrogen gas is 2.27 litre. What will be the volume if the pressure is kept at 0.2 bar?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 11350 cm3.
Using Boyle’s Law: P1 × V1 = P2 × V2
Given:
P1 = 1 bar
V1= 2.27 litres
P2 = 0.2 bar
V2 = ?
Rearranged formula:
V2= (P1 × V1) / P2
V2= (1 × 2.27) / 0.2 = 2.27 / 0.2 = 11.35 litres
Since 1 litre = 1000 cm3
V2= 11.35 × 1000 = 11,350 cm3
So, the volume at 0.2 bar pressure is 11,350 cm3.