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For spontaneous cooling of a hot metal rod (system) in air
Options
(a) ΔSsystem > 0,ΔSunivers < 0
(b) ΔSsystem > 0,ΔSunivers < 0
(c) ΔSsystem < 0,ΔSunivers > 0
(d) ΔSsystem < 0,ΔSunivers < 0
Correct Answer:
ΔSsystem < 0,ΔSunivers > 0
Explanation:
If heat flows from system at temperature T(system) to the surrounding at temperature T(surr) then ΔS(sys) < 0 , ΔS(surr > 0.
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Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- C₃H₉N cannot represent
- If 30 mL of H₂ and 20 mL of O₂ reacts to form water. what is left at the end
- Copper pyrite, the chief ore of copper, is
- If 0.1 M of a weak acid is taken, and its percentage of degree of ionization
- Which of the following compounds shows evidence of the strongest hydrogen bond
Topics: Thermodynamics (179)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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