Back

31. One mole of helium is adiabatically expanded from its initial state

(Pi,Vi,Ti) to its final state (Pf,Vf,Tf) . The decrease in the internal energy associated with this expansion is equal to

(a)  Cv(Ti-Tf)                              (b) CP(Ti-Tf)

(c)  (1/2)(Cp+Cv)(Ti-Tf)          (d) (Cp-Cv)(Ti-Tf)

Answer-a

(13)

Rate this post

Related Posts:

Powered by Contextual Related Posts

Ajneesh

You may also like

12. An ideal gas is taken through the cycle A→ B → C → A, as shown in the figure. If the net heat supplied to the gas in the cycle is 5 J, the work done by the gas in the process C → A is
05/09/2022

(a)      – 5 J (b)  – 10 J (c)   – 15 J (d)  – 20 J Answer-a (118)

11. The P-V diagram of a system undergoing thermodynamic transformation is shown in figure. The work done on the system in going from A → B → C is 50 J and 20 cal heat is given to the system. The change in internal energy between A and C is
05/09/2022

(a)      34 J (b)  70 J (c)   84 J (d)  134 J Answer-d (202)

error: Content is protected !!