हिंदी

Which reaction, with the following value of ΔH, ΔS at 400 K is spontaneous and endothermic?

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प्रश्न

Which reaction, with the following value of ΔH, ΔS at 400 K is spontaneous and endothermic?

विकल्प

  • ΔH = – 48 kJ, ΔS = + 135 J/K

  • ΔH = – 48 kJ, ΔS = – 135 J/K

  • ΔH = + 48 kJ, ΔS = + 135 J/K

  • ΔH = + 48 kJ, ΔS = – 135 J/K

MCQ
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उत्तर

ΔH = + 48 kJ, ΔS = + 135 J/K

Explanation:

ΔG = ΔH – T Δ S

= 48000 – 400 × 135

= 48000 – 54000

= – 6000 J mol–1

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Spontaneity
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