Chemistry Standard 12>Chapter 4 - Chemical Thermodynamics>Exercises>Q 3

EASY

12th Maharashtra Board

IMPORTANT

Earn 100

What is the enthalpy of atomization? Give an example.

Important Questions on Chemical Thermodynamics

MEDIUM

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 4 - Chemical Thermodynamics>Exercises>Q 3

Obtain the expression for work done in chemical reaction.

MEDIUM

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 4 - Chemical Thermodynamics>Exercises>Q 3

Derive the expression for

PV

work.

EASY

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 4 - Chemical Thermodynamics>Exercises>Q 3

What are intensive properties? Explain why density is intensive property.

EASY

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 4 - Chemical Thermodynamics>Exercises>Q 3

How much heat is evolved when $12 g$ of $CO$ reacts with ${NO}_{2}$ ? The reaction is $4 CO (g) + 2 {NO}_{2} (g) \to 4 {CO}_{2} (g) + N_{2} (g), Δ_{r} H^{°} = - 1200 kJ$ .

HARD

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 4 - Chemical Thermodynamics>Exercises>Q 4

Derive the expression for the maximum work.

HARD

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 4 - Chemical Thermodynamics>Exercises>Q 4

Obtain the relatioship between

ΔH

and

ΔU

for gas phase reactions.

HARD

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 4 - Chemical Thermodynamics>Exercises>Q 4

State Hess's law of constant heat summation. Illustrate with an example. State its applications.

EASY

12th Maharashtra Board

IMPORTANT

Chemistry Standard 12>Chapter 4 - Chemical Thermodynamics>Exercises>Q 4

Although

ΔS

for the formation of two moles of water from

H_{2}

and

O_{2}

is

- 327 {JK}^{- 1}

, it is spontaneous. Explain. (Given

ΔH

for the reaction is

- 572 kJ

).