2.5. One mole of an ideal gas

(C_(P)

)

=

(

5(R)/(2))

in a closed piston/cylinder is expanded from

T^(i)=500K,P^(i)=0.6MPa

to

P^(f)=0.1MPa

by the following pathways. For each pathway, calculate

\\\\Delta U,\\\\Delta H,Q

, and

W_(EC):(a)

isothermal; (b) constant volume; (c) adiabatic.