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A spherical balloon of volume V contains helium at a pressure P. How many moles of helium are in the balloon if the average kinetic energy of the helium atoms is vec(K) ?

Two moles of ideal helium gas are in a rubber balloon at 30^@C. The balloon is fully expandable and can be assumed to require no energy in its expansion. The temperature of the gas in the balloon is slowly changed to 35^@C. The amount of heat required in raising the temperature is nearly (take R =8.31 J//mol.K )

Balloon 'A' is filled with air and Balloon 'B' is filled with H_2 gas. Which balloon rises higher up in the sky and why?

Gas Balloons Main Kaunsi Gas Hoti Hai?

A 5 g weight is fastened to two helium-filled balloons with the help of a 1m long thread. Both the balloons carry the same charge q and the distance between them in 0.6 m when the system hangs in equilibrium. The charge q is

Helium is used in balloons in place of hydrogen because it is

Two balloon are filled with equal moles of hydrogen and helium. Which balloon will contract first if holes of same size are made in them?