For spontaneous cooling of a hot metal rod (system) in air

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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)

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