Question

The balloons are filled, one with pure He gas and other by air, respectively. If the pressure and temperature of these balloons are same, then the number of molecules per unit volume is –

• A. More in the He filled balloon
• B. Same in both balloons
• C. More in air filled balloon
• D. In the ratio of 1 : 4

Answer 1

Answer: (B)

Same in both balloons

Answer 2

P = nRT

if P µ T are same, then 'n' will also be the same.