1. In which of the following process, a maximum increase in entropy is observed?

2. The bond energy (in kcal mol

3. Which thermodynamic function accounts automatically for enthalpy and entropy both?

4. The enthalpies of combustion of carbon and carbon monoxide are -393.5 and -283.0 kJ mol^-1 respectively. The enthalpy of formation of carbon monoxide is:

5. The enthalpy of formation of carbon monoxide is:

6. The amount of the heat released when 20 ml 0. 5 M NaOH is mixed with 100 ml 0. 1 M HCl is x kJ. The heat of neutralization is

7. Based on the first law of thermodynamics, which one of the following is correct?

8. A system absorb 10 kJ of heat at constant volume and its temperature rises from 270°C to 370°C. The value of ∆ U is

9. The temperature of the system decreases in an ______.

10. Which of the following salts will have maximum cooling effect when 0. 5 mole of the salt is dissolved in same amount of water. Integral heat of solution at 298 K is given for each salt?