Question

A gas occupies a volume of 250ml at . 98bar of hg and at 25°C what additional pressure is required to reduce the volume of the gas to 200ml at the same temperature

Answer 1

Initially P1= 98bar and V1 = 250ml

finally v 2=200ml and p2 = ?

according to first gas law

P1 ×V1 = P2 × V2

so on substituting the value

98 × 250 = P2 × 200

P2 = 24500÷200

P2 = 122.5 bar

soadditional pressure is required to reduce the volume of the gas to 200ml at the same temperature = 122.5 bar