- 1(current)
Q. No.What is the nearest integer value of \(x\) for the Gibbs free energy change at 298 K, expressed as \(x×10^{−1}~kJ mol^{−1}\) for the given reaction.
\(Cu(s)+Sn^{2+}(0.001 M)\rightarrow Cu^{2+}(0.01M)+Sn(s) \)
Given: \(\small{E^\ominus_{Cu^{2+}/Cu}=0.34~V;~E^\ominus_{Sn^{2+}/Sn}=-0.14~V;~F=96500~C~mol^{-1}}\)
1. 873
2. 983
3. 1002
4. 911
Subtopic: Relation between Emf, G, Kc & pH |
52%
From NCERT
JEE
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Extraction of chlorine from brine occurs when:
| 1. | \(\Delta G_V\) for the overall reaction is negative and EV for overall reaction has negative value. |
| 2. | \(\Delta G_V\) for the overall reaction is positive and EV for overall reaction has negative value. |
| 3. | \(\Delta G_V\) for the overall reaction is positive and EV for overall reaction has positive value. |
| 4. | \(\Delta G_V\) for the overall reaction is negative and EV for overall reaction has positive value. |
Subtopic: Relation between Emf, G, Kc & pH |
69%
From NCERT
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The reduction potential of hydrogen half-cell will be negative if:
1. P(H2) = 1atm and [H+] = 2.0 M
2. P(H2) = 1 atm and [H+] = 1.0 M
3. P(H2) = 2 atm and [H+] = 1.0 M
4. P(H2) = 2 atm and [H+] = 2.0 M
Subtopic: Nernst Equation | Relation between Emf, G, Kc & pH |
59%
From NCERT
JEE
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- 1(current)
Q. No.
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