The change in entropy when three moles of argon gas are heated at constant volume from 200 K to 300 K is:

- a)15.16 JK
^{–1}mol^{–1} - b)– 15.16 JK
^{–1}mol^{–1} - c)– 5.05 JK
^{–1}mol^{–1} - d)5.05 JK
^{–1}mol^{–1}

Correct answer is option 'D'. Can you explain this answer?

Related Test: Test: Thermodynamics And Thermochemistry- 3

2 Answers

Nishant Singh
answered
Dec 01, 2018

You must be thinking that the answer should be A from the formula but options are given in J per Kelvin per mole so divide your answer with 3 i.e. 15.20/3=5.06 J per Kelvin per mole

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