Match List-I (Equations) with List-II (Type of processes) and select the correct option.

A reaction occurs spontaneously if:

1. T∆S > ∆H and ∆H is +ve and ∆S are –ve

2. T∆S = ∆H and both ∆H and ∆S are +ve

3. T∆S < ∆H and both ∆H and ∆S are +ve

4. T∆S > ∆H and both ∆H and ∆S are +ve

Which of the following pairs of chemical reactions is certain to result in a spontaneous reaction:

1. Endothermic and decreasing disorder

2. Exothermic and increasing disorder

3. Endothermic and increasing disorder

4. Exothermic and decreasing disorder

Find the correct entropy condition for a spontaneous process.

What is the entropy change (in JK^–1 mol^–1) when one mole of ice is converted into water at 0 ºC?
(The enthalpy change for the conversion of ice to liquid water is 6.0 KJ mol^–1 at 0 ºC)

The unit of entropy is:

2 mole of an ideal gas at 27ºC temp. is expanded reversibly from 2 lit. to 20 lit. Find entropy change (R = 2 cal/mol K):

At 27°C, the latent heat of fusion of a substance is 2930 J mol⁻¹.

Calculate the entropy change (ΔS) for the process:

1. 9.77 J/mol K

2. 10.77 J/mol K

3. 9.07 J/mol K

4. 0.977 J/mol K