For hydrogen gas, H2, tables give values for the parame ters of eqn 7a of a-2728JKmoll, b-3.26x 10 3JK-2 mor and c - 0.50 J K2 mol - Calculate the value of the consta pressure heat capacity of hydrogen at 25 °C

27.32 J/k Mole.

Explanation:

The constant pressure heat capacity of hydrogen is given by Shomate equation

C_p = a + b*t + c*t^2

C_p = heat capacity (J/mol*K)

t = temperature (K) / 1000.

Temperature = 25°C=298 K

t = 298/1000 = 0.298

putting values we get

C_p = 27.28+3.26x10^-3 * 0.298+0.50 * (0.298) ^2

C_p=27.32 J / K mole

the value of the constant pressure heat capacity of hydrogen at 25 °C=

C_p=27.32 J / K mole