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A reaction occurs spontaneously is
Options
(a) TΔS < ΔH and both ΔH and ΔS are +ve
(b) TΔS > ΔH and ΔH is +ve and ΔS is -ve
(c) TΔS > ΔH and both ΔH and ΔS are +ve
(d) TΔS = ΔH and both ΔH and ΔS are +ve
Correct Answer:
TΔS > ΔH and both ΔH and ΔS are +ve
Explanation:
ΔG = ΔH – TΔS .
ΔG = -ve for spontaneous reaction , When ΔS = +ve, ΔH = +ve and TΔS > ΔH ⇒ ΔG = -ve, When randomness favours and energy factor do not favour then spontaneity depends upon the temperature dependent means at high temperature. TΔS > ΔH, ΔG = -ve and reaction is feasible.
Related Questions: - Which is the correct order of increasing energy of the listed orbitals in the atom
- For the reaction R → P a graph of [R] against time is found to be a straight
- The compounds having only primary hydrogen atoms is
- On heating which of the following releases CO₂ most easily
- Solubility of MX₂ – type electrolytes is 0.5 ˣ 10⁻⁴ mol/L.,
Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which is the correct order of increasing energy of the listed orbitals in the atom
- For the reaction R → P a graph of [R] against time is found to be a straight
- The compounds having only primary hydrogen atoms is
- On heating which of the following releases CO₂ most easily
- Solubility of MX₂ – type electrolytes is 0.5 ˣ 10⁻⁴ mol/L.,
Topics: Thermodynamics (179)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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