28 g of gas is contained in a flask at a pressure of 10 atm and at a temperature of

CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance

Problem

28 g of

N_2

gas is contained in a flask at a pressure of 10 atm and at a temperature of

57^\circ\text{C}

. It is found that due to leakage in the flask, the pressure is reduced to half and the temperature to

27^\circ\text{C}

. The quantity of

N_2

gas that leaked out is (1)

11/20

g (2)

20/11

g (3)

5/63

g (4)

63/5