For an endothermic reaction-

1. $\sum _{Products}H=\sum _{Reac\mathrm{tan}ts}H$

2. $\sum _{Products}H<\sum _{Reac\mathrm{tan}ts}H$

3. $\sum _{Products}H>\sum _{Reac\mathrm{tan}ts}H$

4.

Concept Questions :-

Enthalpy and It's Type
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

All the natural process in this universe produce

1. A decrease in entropy of the universe

2. An increase in entropy of the universe

3. No change in entropy

4. Sometimes increase or sometimes decrease in entropy

Concept Questions :-

Spontaneity and Entropy
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

For the reaction, $2{N}_{2}\left(g\right)+{O}_{2}\left(g\right)\to 2{N}_{2}O$, at 298K $∆H$ is 164 KJ mol-1. The $∆E$ of the reaction is

1. 166.5 kJ mol-1

2. 161.5 kJ mol-1

3. 164.0 kJ mol-1

4. 169 kJ mol-1

Concept Questions :-

Enthalpy and It's Type
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

For $A\to B$ Reaction is spontaneous when temperature can be :

1. 400 K

2. 300 K

3. 500 K

4. none is correct

Concept Questions :-

Spontaneity and Entropy
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

44.0 kJ of heat is required to evaporate one mole of water at 298 K. If $∆{H}_{f}$ of ${H}_{2}O\left(l\right)$ is -286 kJ mol-1$∆{{H}^{\circ }}_{f}$ of ${H}_{2}O\left(g\right)$ is

1. -330 kJ mol-1

2. +242 kJ mol-1

3. -242 kJ mol-1

4. -198 kJ mol-1

Concept Questions :-

Enthalpy and It's Type
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The molar heat capacity, ${C}_{v}$ of an ideal gas whose energy is that of translational motion only is

1.

2.

3.

4.

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The lattice energy of NaCl is -780 kJ mol-1. The enthalpies of hydration of Na+(g) and Cl-(g) ions are -406 kJ mol-1 and -364 kJ mol-1. The enthalpy of solution of NaCl(s) is

1. 738 kJ mol-1

2. 10 kJ mol-1

3. -10 kJ mol-1

4. -822 kJ mol-1

Concept Questions :-

Enthalpy and It's Type
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Enthalpy of fusion of a liquid is 1.435 kcal mol-1 and molar entropy change is 5.26 cal mol-1K-1. Hence melting point of liquid is :

1. ${100}^{\circ }C$

2. ${0}^{\circ }C$

3. 373 K

4. $-{273}^{\circ }C$

Concept Questions :-

Spontaneity and Entropy
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Following reaction occurs at ${25}^{\circ }C$ :

is-

1. -45.65 kJ

2. -28.53 kJ

3. -22.82 kJ

4. -57.06 kJ

Concept Questions :-

Gibbs Energy Change
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

When 1 mole of an ideal gas to 20 atm pressure and 15 L volume expands such that the final pressure becomes 10 atm and the final volume become 60 L. Calculate entropy change for the reaction (Cp.m = 30.96)

1.

2.

3.

4.