The maximum number of molecules is present in:

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

Problem

The maximum number of molecules is present in: (1) 15 litre of

H_2

gas at STP (2) 5 litre

N_2

gas at STP (3) 0.5 g of

H_2

gas (4) 5 g of

O_2

gas