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

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.