BITSAT Chemistry Thermodynamics Online Test Set B

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Question 1

Question

Ka for CH3COOH at 25،C is 1.754 _ 10ذ5 . At50،C Ka is 1.633 _ 10ذ5. What are _H، and _S، for the ionisation of CH3COOH ?

Answer

– 1.55 kJmol-1, – 96.44 Jmol -1K-1

1.55 kJmol-1, 96.44 Jmol -1K-1

– 2.55 kJmol-1, – 106.44 Jmol -1K-1

– 1.55 kJmol-1, 96.44 Jmol -1K-1