For hydrogen gas, `C_p= 3.409 cal g^-1 ^circC^-1`, `C_V=2.409 cal g^-1 ^circC^-1` and molecular weigh of hydrogen = 2. Calculate the value of J.

The specific heat capacities of hydrogen at constant volume and at constant pressure are 2.4 cal g^(-1) ^@C ^(-1) and 3.4 cal g^(-1)^@C respectively. The molecular weight of hydrogen is 2g mol^(-1) and the gas constant R= 8.3 xx 10^(7)erg^@C mol^(-1) . Calculate the value of J .

5g of a gas is contained in a rigid container and is heated from 15^@C to 25^@C . Specific heat capacity of the gas at constant volume is 0.172 cal g ^(-1)^@C^(-1) and the mechanical equivalent of heat is 4.2 J cal . Calculate the change in the internal energy of the gas.

The specific heats of an ideal gas at constant volume and constant pressure are respectively 4.98 and 6.96 cal mol^(-1)K^(-1) . If the molecular weight of the gas be 32, then calculate the root-mean square speed of the molecules of the gas at 120^(@)C, (1 cal=4.2J)

The molar specific heats of an ideal gas at constant volume and constant pressure are respectively 4.98 and 6.96 cal mol^(-1) K^(-1) . If the molecular weight of the gas be 32, then calculate the root means square speed of the molecule of the gas at 120^@ C . (1 cal = 4.2 J)

A mixture contains 1 mole of helium (c_p = 2.5 R, C_v 1.5 R. ) and 1mole of hydrogen (C_p = 3.5 R, C_v = 2.5 R, ) . Calculate the values of C_p , C_v and gamma for the mixture.

For air, specific heat at constant pressure is 0.273 cal g^(-1) .^(@)C^(-1) and specific heat at constant volume is 0.169 cal g^(-1).^(@)C^(-1) , density of air = 0.001293 g cm^(-3) at S.T.P. Calculate the value of J.

Calculate the amount of heat required in calorie to change 1 g of ice at -10^(@)C to steam at 120^(@)C . The entire process is carried out at atmospheric pressure. Specific heat of ice and water are 0.5 cal g^(-1) .^(@)C^(-1) and 1.0 cal g^(-1) .^(@)C^(-1) respectively. Latent heat of fusion of ice and vaporization of water are 80 cal g^(-1) and 540 cal g^(-1) respectively. Assume steam to be an ideal gas with its molecules having 6 degrees of freedom. Gas constant R = 2 cal mol^(-1) K^(-1) .

Calculate the molar specific heat at constant volume . Given : specific heat of hydrogen at constant pressure is 6.85 "cal" mol^(-1) K^(-1) and density of hydrogen = 0.0899 "g" cm^(-3) . One mole of gas = 2.016g, J=4.2xx10^(7) "erg" cal^(-1) and 1 atmosphere = 10^(6) "dyne" cm^(-2) .

Five moles of an ideal gas are taken in a Carnot engine working between 100^circC and 30^circC . The useful work done in one cycle is 420 joule. Calculate the ratio the volume of the gas at the end beginning of the isothermal expansion. R=8.4 J Mole^-1 K^-1 .