Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

Ask Hesss Law question free ×
  • CBSE×
  • Class 11 Science×
  • Chemistry×
  • Thermodynamics×
  • Hesss Law×

Hesss Law Free Doubts and Solutions

CBSE - XI Science - Chemistry - Thermodynamics

The enthalpy of combustion for H2, C (graphite) and CH4 are -285.8, -393.5, and -890.4 kJ/mol respectively. Calculate the standard enthalpy of formation ∆Hf for CH4.

Asked by Topperlearning User 15th June 2016, 5:36 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XI Science - Chemistry - Thermodynamics

Define bond dissociation energy and mean bond dissociation energy.

Asked by Topperlearning User 15th June 2016, 5:35 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XI Science - Chemistry - Thermodynamics

Calculate the H of the following reaction, which describes the production of coal gas from carbon, given the steps below. H2O (g) + C (s) CO (g) + H2 (g) Given Steps H2 (g) + 1/2 O2 (g) H2O (g) H = - 242.0 kJ 2CO (g) 2 C (s) + O2 (g) H = + 221.0 kJ  

Asked by Topperlearning User 15th June 2016, 5:35 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XI Science - Chemistry - Thermodynamics

Write a thermo chemical equation for enthalpy of formation of carbon dioxide.

Asked by Topperlearning User 15th June 2016, 5:35 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XI Science - Chemistry - Thermodynamics

Calculate the enthaphy change of formation of gluocouse by applying Hess's law, given enthaphy of combustion of glucouse is equal to -2802kJ/mol and enthaply of formation od carbondioxide = 394kJ/mol and enthaply of formation of water is 386kJ/mol.

Asked by aishwarya jay 11th September 2014, 1:36 AM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XI Science - Chemistry - Thermodynamics

Show calculation of Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '. from: Enthalpy changes of formation and bond enthalpies.

Asked by Topperlearning User 14th August 2014, 10:41 AM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XI Science - Chemistry - Thermodynamics

State "The Hess's law of constant summation".

Asked by Topperlearning User 14th August 2014, 10:15 AM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XI Science - Chemistry - Thermodynamics

Enthalpy of combustion of carbon graphite and carbon diamond is -293.5(kJ/mol) and - 670(kJ/mol) respectively. Calculate conversion of graphite into diamond.

Asked by Topperlearning User 14th August 2014, 9:58 AM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XI Science - Chemistry - Thermodynamics

Compare lattice Enthalpy and Ionization Enthalpy.

Asked by Topperlearning User 14th August 2014, 9:38 AM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XI Science - Chemistry - Thermodynamics

Give an example of application of Hess' Law.

Asked by Topperlearning User 13th August 2014, 4:24 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XI Science - Chemistry - Thermodynamics

Explain with example Enthalpy of Solution.

Asked by Topperlearning User 4th June 2014, 1:23 PM
Answered by Expert

Answer this question

×
Your answer has been posted successfully!