Physical Chemistry: Show complete solution. One mole of an ideal gas at 0 degrees C and 1 atm pressure is mixed adiabatically with one mole of a different gas at 100 degrees C and 1 atm pressure to...

Physical Chemistry: Show complete solution.

One mole of an ideal gas at 0 degrees C and 1 atm pressure is mixed adiabatically with one mole of a different gas at 100 degrees C and 1 atm pressure to yield a mixture whose pressure is also 1 atm. If C_p
for each gas is
5/2 R, what is ∆S for the process?