A container contains hydrogen gas at pressure P and temperature T. Another identical container contains helium gas at pressure 2P and temperature T/2. The ratio of the number of molecules of the two gases is
A. 1 : 4
B. 4 : 1
C. 1 : 2
D. 2 : 1
Answer:A
A container contains hydrogen gas at pressure P and temperature T. Another identical container contains helium gas at pressure 2P and temperature T/2. The ratio of the number of molecules of the two gases is
A. 1 : 4 B. 4 : 1 C. 1 : 2 D. 2 : 1