For the reaction, 2Cl(g) Cl2(g), the correct option is:
1.
2.
3.
4.
The correct option for free expansion of an ideal gas under adiabatic condition is:
1. and
2. and
3. and
4. and
Hydrolysis of sucrose is given by the following reaction
Sucrose + H2O Glucose + Fructose
If the equilibrium constant (Kc) is 21013 at 300 K, the value of at the same temperature will be:
1. 8.314 J mol–1 K–1300 Kln (21013)
2. 8.314 J mol–1 K–1300 Kln (31013)
3. –8.314 J mol–1 K–1300 Kln (41013)
4. –8.314 J mol–1 K–1300 Kln (21013)
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
At standard conditions, if the change in the enthalpy for the following reaction is –109 kJ mol–1
H2(g)+Br2(g)2HBr(g) and the bond energy of H2 and Br2 is 435 kJ mol–1 and 192 kJ mol–1 respectively, what is the bond energy (in kJ mol–1) of HBr?
1. | 368 | 2. | 736 |
3. | 518 | 4. | 259 |
Reversible expansion of an ideal gas under isothermal and adiabatic conditions are as shown in the figure:
ABIsothermal expansion
ACAdiabatic expansion
Which of the following options is not correct?
1.
2.
3.
4.
An ideal gas expands isothermally from at 300 K against a constant pressure of . The work done by the gas is:
1. | +270 kJ | 2. | –900 J |
3. | +900 kJ | 4. | –900 kJ |
Which of the following options correctly represents the relationship between \(C_p \text { and } C_V\) for one mole of an ideal gas?
1. | \(C_P=R C_V \) | 2. | \(C_V=RC_P \) |
3. | \(C_P+C_V=R \) | 4. | \(C_{\mathrm{P}}-\mathrm{C}_{\mathrm{V}}=\mathrm{R}\) |
For irreversible expansion of an ideal gas under isothermal condition, the correct option is :
1.
2.
3.
4.
A process among the following shows decrease in entropy is :
1. \(2 \text H \left(g\right)\rightarrow\text H_{2} \left(g\right)\)
2. Evaporation of water
3. Expansion of a gas at a constant temperature
4. Sublimation of solid to gas