The molar specific heat of He at constant volume is 12.47 J/mol.K. Two

1.	The molar specific heat of He at constant volume is 12.47 J/mol.K. Two moles of He are heated at constant pressure so that the rise in temperature is 10 K. Find the increase in the internal energy of the gas.
Answer» Data : C_v = 12.47 J/mol.k, n = 2, T_f – T_i = 10 K The increase in the internal energy of the gas, ∆ U = _nC_v (T_f– T_i) = (2) (12.47) (10) J = 249.4 J

The molar specific heat of He at constant volume is 12.47 J/mol.K. Two moles of He are heated at constant pressure so that the rise in temperature is 10 K. Find the increase in the internal energy of the gas.

Answer»

Data : C_v = 12.47 J/mol.k, n = 2, T_f – T_i = 10 K

The increase in the internal energy of the gas,

∆ U = _nC_v (T_f– T_i)

= (2) (12.47) (10) J

= 249.4 J

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The molar specific heat of He at constant volume is 12.47 J/mol.K. Two moles of He are heated at constant pressure so that the rise in temperature is 10 K. Find the increase in the internal energy of the gas.

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