A. | A liquid evaporates to vapour. |
B. | Temperature of a crystalline solid lowered from \(130~\text{K}\) to \(0~\text{K}.\) |
C. | \(2 \mathrm{NaHCO}_{3(\mathrm{~s})} \rightarrow \mathrm{Na}_2 \mathrm{CO}_{3(\mathrm{~s})}+\mathrm{CO}_{2(\mathrm{~g})}+\mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}\) |
D. | \(\mathrm{Cl}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{Cl}_{(\mathrm{g})}\) |
1. | \(\text { A, B and D }\) | 2. | \(\text { A, C and D }\) |
3. | \(\text { C and D }\) | 4. | \(\text { A and C }\) |
For irreversible expansion of an ideal gas under isothermal condition, the correct option is :
1.
2.
3.
4.
For the reaction, 2Cl(g) Cl2(g), the correct option is:
1.
2.
3.
4.
If for a certain reaction is 30 kJ mol–1 at 450 K, the value of (in JK–1 mol–1) for which the same reaction will be spontaneous at the same temperature is:
1. 70
2. –33
3. 33
4. –70