One mole of gas occupies a volume of 200 ml. at 100 mm pressure. What is the volume occupied by two moles of this gas at 400 mm pressure and at same temperature?

Options

A. 50 ml
B. 100 ml
C. 200 ml
D. 400 ml

Answer

b

Explanation

For one mole of the gas `P_(2)V_(2)=P_(1)V_(1)`
`V_(2)=(P_(1)V_(1))/(P_(2))=(100xx200)/(400)=50ml`
`rArr" Volume of 2 moles of the gas at 400 mm pressure "=2xx50=100ml`