One mole of a monatomic ideal gas is taken through a cycle ABCDA as shown in the P-V diagram. Column II gives the characteristics involved in the cycle. Match them with each of the processes given in Column I
Column-I | Column-II | ||
(I) | Process A → B | (P) | Internal energy decreases |
(II) | Process B → C | (Q) | Internal energy increases |
(III) | Process C → D | (R) | Heat is lost |
(IV) | Process D → A | (S) | Heat is gained |
(T) | Work is done on the gas |
Text Solution
Verified by ExpertsA
(I) 
Volume and temperature both decrease so internal energy decreases and work is done on gas and
Hence heat is lost.
(II) 
;
Temperature decreases so internal energy of the system decreases.
Hence heat is gained.
(III) 
constant hence Temperature increases
Hence heat is gained.
(IV) 
Hence, heat is lost.
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