Question
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Answer (Detailed Solution Below)
Option 1 : -119.6 kJ per mol
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Detailed Solution
सही उत्तर -119.6 kJ per mol है।
Key Points
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prepsnap.in • Part -AQuestion:
Given E0(Fe3+/Fe2+) = +0.77 V and E0(Sn4+/Sn2+) = +0.15 V, the standard Gibbs energy change for 2Fe3+ + Sn2+ giving 2Fe2+ + Sn4+ is / E0(Fe3+/Fe2+) = +0.77 V और E0(Sn4+/Sn2+) = +0.15 V दिए गए हैं, 2Fe3+ + Sn2+ से 2Fe2+ + Sn4+ बनने हेतु मानक गिब्स ऊर्जा परिवर्तन है
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-119.6 kJ per mol
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-59.8 kJ per mol
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-239.3 kJ per mol
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+119.6 kJ per mol
Correct Answer: -119.6 kJ per mol
$E^\circ_{\text{cell}} = 0.77 - 0.15 = 0.62$ V and $n = 2$, so $\Delta G^\circ = -nFE^\circ = -2(96485)(0.62) = -119.6$ kJ per mol. / $E^\circ_{\text{cell}} = 0.77 - 0.15 = 0.62$ V और $n = 2$, अतः $\Delta G^\circ = -nFE^\circ = -2(96485)(0.62) = -119.6$ kJ प्रति मोल।
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