for the following reaction is:
1. | -731 J | 2. | -1317 J |
3. | -501 J | 4. | +731 J |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe densities of graphite and diamond at 298 K are 2.25 and 3.31 g cm–3, respectively. If the standard free energy difference (∆Gº) is equal to 1895 J mol–1, the pressure at which graphite will be transformed into diamond at 298 K is:
1. 11.08
2.
3.
4. 11.08
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe standard enthalpy and standard entropy changes for the oxidation of ammonia at 298 K are –382.64 kJ mol–1 and –145.6 JK–1 mol–1, respectively. Standard Gibbs energy change for the same reaction at 298 K is:
1. –339.3 kJ mol–1
2. – 439.3 kJ mol–1
3. –523.2 kJ mol–1
4. –221.1 kJ mol–1
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology