JEE Main | 2014ThermodynamicsHard
Question
One mole of diatomic ideal gas undergoes a cyclic process ABC as shown in figure. The process BC is adiabatic. The temperatures at A, B and C are 400 K, 800 K and 600 K respectively. Choose the correct statement
Options
A.The change in internal energy in whole cyclic process is 250R
B.The change in internal energy in the process CA is 700R
C.The change in internal energy in the process AB is - 350R
D.The change in internal energy in the process BC is - 500R
Solution
ᐃU = nCvᐃT = 1 × 
ᐃT
For BC, ᐃT = - 200 K
⇒ ᐃU = - 500R
ᐃT For BC, ᐃT = - 200 K
⇒ ᐃU = - 500R
Create a free account to view solution
View Solution FreeMore Thermodynamics Questions
Two moles of ideal helium gas are in a rubber balloon at 30oC. The balloon is fully expandable and can be assumed to req...In a given process of an ideal gas, dW = 0 and dQ...A gas takes part in three thermal processes in which it is heated from the same initial state to the same final temperat...For monoatomic gas the relation between pressure of a gas and temperature T is PαTC where C is. (For adiabatic proc...A gas at intial temperature 27oC is adiabatic cally compressed so that its volume becomes 1 / 9 of the previous one. If ...