Intermediate First Year Chemistry>Chapter 6 - Thermodynamics>QUESTIONS>Q 48

HARD

11th Telangana Board

IMPORTANT

Earn 100

Explain the state function 'enthalpy, H'.Give the equation that gives the relationship between $∆ U$ and $∆ H$ ?

Important Questions on Thermodynamics

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 6 - Thermodynamics>QUESTIONS>Q 49

Show that

∆ H

=

∆ U + ∆ n_{g} RT

.

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 6 - Thermodynamics>QUESTIONS>Q 50

If water vapour is assumed to be a perfect gas, molar enthalpy change for vaporization of

1 mol

of water at

1 bar

and

100 ° C

is

41 kJ . {mol}^{- 1}

. Calculate the internal energy change, when

1 mol

of water is vaporized at

1 bar

pressure and

100 ° C

.

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 6 - Thermodynamics>QUESTIONS>Q 50

The molar enthalpy change for fusion of

1 mol

of water at

1 atm

and

0 ° C

is

6.00678 KJ {mol}^{- 1}

. Calculate the internal energy change, when

1 mol

of water liquid is converted into ice.

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 6 - Thermodynamics>QUESTIONS>Q 51

Explain the intensive and extensive properties?

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 6 - Thermodynamics>QUESTIONS>Q 52

Define heat capacity. What are

C_{p}

and

C_{v}

? Show that

Cp - C_{v} = R

.

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 6 - Thermodynamics>QUESTIONS>Q 53

Explain the determination of

∆ U

calorimetrically.

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 6 - Thermodynamics>QUESTIONS>Q 54

Explain the determination of

∆ H

calorimetrically.

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 6 - Thermodynamics>QUESTIONS>Q 55

What is enthalpy of a reaction? Explain the standard enthalpy of a reaction?