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Question 23086
NEET Chemistry · Medium

Thermodynamics: Spontaneity numerics MCQ

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Spontaneity numericsMediumQuestion 23086

Question

If ΔH=+20\Delta H = +20 kJ and ΔS=+100\Delta S = +100 J K−1^{-1}, spontaneity begins above temperature:

  1. A
    200 K
    Correct
  2. B
    100 K
  3. C
    20 K
  4. D
    500 K

Correct answer

200 K

Explanation

Set ΔG=0\Delta G = 0: T=ΔH/ΔS=20/0.1T=\Delta H/\Delta S = 20/0.1.

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