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12 Dec 2019

Calculate the standard enthalpy change for the reaction

2A+Bâ2C+2D

Use the following data:

Substance ÎHâf
(kJ/mol)

A -253

B -423

C 219

D -509

ÎHârxn = 349 kJ

For the reaction given in Part A, how much heat is absorbed when 2.50 mol of A reacts?

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Related questions

Calculate the standard enthalpy change for the reaction

2A+Bâ2C+2D

Use the following data:

Substance	ÎHâf (kJ/mol)
A	-255
B	-375
C	177
D	-495

For the reaction given in Part A, how much heat is absorbed when 3.40 mol of A reacts?

I only need part B answered

Chemical energy is released or absorbed from reactions in various forms. The most easily measurable form of energy comes in the form of heat, or enthalpy. The enthalpy of a reaction can be calculated from the heats of formation of the substances involved in the reaction:

ÎHârxn=Î£ npÎHâf(products)âÎ£ nrÎHâf(reactants)

where n represents the stoichiometric coefficients.

Calculate the standard enthalpy change for the reaction

2A+Bâ2C+2D

Use the following data:

Substance	ÎHâf (kJ/mol)
A	-231
B	-407
C	219
D	-497

Calculate the standard enthalpy change for the reaction

2A+Bâ2C+2D

Use the following data:

Substance	ÎHâf (kJ/mol)
A	-243
B	-397
C	191
D	-525

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Calculate the standard enthalpy change for the reaction

2A+Bâ2C+2D

Use the following data:

Substance ÎHâf
(kJ/mol)

A -253

B -423

C 219

D -509

ÎHârxn = 349 kJ

For the reaction given in Part A, how much heat is absorbed when 2.50 mol of A reacts?

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Calculate the standard enthalpy change for the reaction 2A+Bâ2C+2D Use the following data: Substance ÎHâf (kJ/mol) A -253 B -423 C 219 D -509 ÎHârxn = 349 kJ For the reaction given in Part A, how much heat is absorbed when 2.50 mol of A reacts?

Unlock all answers

Related textbook solutions

Basic Chemistry

Principles of Chemistry Molecular Approach

Principles of Chemistry Molecular Approach

Chemistry: Structure and Properties

Chemistry: A Molecular Approach

Chemistry: A Molecular Approach

Principles of Chemistry: A Molecular Approach

Chemistry: The Central Science

Related questions

Weekly leaderboard

Calculate the standard enthalpy change for the reaction

2A+Bâ2C+2D

Use the following data:

Substance ÎHâf
(kJ/mol)

A -253

B -423

C 219

D -509

ÎHârxn = 349 kJ

For the reaction given in Part A, how much heat is absorbed when 2.50 mol of A reacts?