Two ballons are filled, one with pure He gas and other by air, repectively. If the pressure and temperature of these ballons are same then the number of molecules per unit volume is:A. more in the He filled balloonB. same in both balloonsC. more in air filled balloonsD. in the ratio of 1:4

Two ballons are filled, one with pure He gas and other by air, repecti

1.	Two ballons are filled, one with pure He gas and other by air, repectively. If the pressure and temperature of these ballons are same then the number of molecules per unit volume is:A. more in the He filled balloonB. same in both balloonsC. more in air filled balloonsD. in the ratio of 1:4
Answer» Correct Answer - B Ideal gas equation can be written as pv=nRT or `n/v=p/(RT)`=constant So, at constant pressure and temperature, all gases, will contain equal number of molecules per unit volume.

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Two ballons are filled, one with pure He gas and other by air, repectively. If the pressure and temperature of these ballons are same then the number of molecules per unit volume is:A. more in the He filled balloonB. same in both balloonsC. more in air filled balloonsD. in the ratio of 1:4

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