A ballon has 5.0 g mole of helium at `7^@C` calculate the total internal eneryg of the system.

A ballon has 5.0 g mole of helium at 7^@C calculate the number of atoms of helium in the ballon.

A gas mixture consists of 2.0 moles of oxygen and 4.0 moles of neon at temperature T. Nelglecting all vibrational modes, calculate the total internal energy of the system. (oxygen has two rotational modes).

Two insulated spherical conductors of radii 5.0 cm and 10.0 cm are charged to potentials of 600 V and 300 V respectively. Calculate the total energy of the system.

Calculate the kinetic energy of 0.2 g of H_2 at 27^@C .

At 87^(@)C , the following equilibrium is established H_(2) (g)+S(s)hArrH_(2)S(g), K_(p)=7xx10^(-2) If 0.50 mole of hydrogen and 1.0 mole of sulphur are heated to 87^(@)C calculate partial pressure of H2S at eq.

Calculate number of moles in 132g of PCl5

Calculate number of moles in 132g of PCl5

Calculate number of moles in 132g of PCl5

The vapour pressure of ethanol and methanol are 44.5 and 88.7 mm of Hg at 298 K. An ideal solution is formed at the same temperature by mixing 60 g of ethanol and 40 g methanol. Calculate the total vapour pressure of the solution and the mole fraction of methanol in the vapour phase.

A sample of helium has volume of 520mL at 100°C. calculate the temperature at which the volume becomes 260ml assume that the pressure is constant.