QuestionThermodynamics / entropy change
What will be the overall change in entropy for the following process using 1·00 mole of He ? He (300 K, 1·20 atm) ⟶ He (100 K, 12·0 atm) (where, heat capacity of He is 21 J K⁻¹ mol⁻¹; R = 8·3 J K⁻¹ mol⁻¹, ln 10 = 2·3, log 3 = 0·48; assume the helium acts ideally)
- (a) − 19·1 J K⁻¹
- (b) − 23·2 J K⁻¹
- (c) − 42·4 J K⁻¹
- (d) − 51·3 J K⁻¹
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