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If 900 J/g of heat is exchanged at boiling point of water, then what is increase in entropy
Options
(a) 900 J/mol
(b) 87.2 J/mol
(c) 43.4 J/mol
(d) Zero
Correct Answer:
43.4 J/mol
Explanation:
Heat exchanged at boiling point of water
= 900 J/g = 900 x 18 J/mol = 16200.0 J/mol.
ΔS(vap) = ΔH(vap) / T(b) = 16200/ 373 ( therefore T(b) = 273 + 100 = 373 K)
= 43.4 J/mol.
Related Questions: - When CHCl₃ is boiled with NaOH, it gives
- Nitromethane reacts with chlorine in the presence of a base to give
- Which of the following is never true for cathode rays?
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Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When CHCl₃ is boiled with NaOH, it gives
- Nitromethane reacts with chlorine in the presence of a base to give
- Which of the following is never true for cathode rays?
- Which of the following is expected not to yield a white precipitate
- A primary alcohol,C₃H₈O (A) on heating with sulphuric acid undergo dehydration
Topics: Thermodynamics (179)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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