Question

Enthalpies of formation of CO(g), CO₂(g), N₂O(g) and N₂O₄ (g) are -110, -393, 81 and 9.7 kJ mol-1. Find the value of $space increment subscript straight r straight H to the power of 0$ for the reaction:
N₂O₄ (g) + 3CO(g) $space rightwards arrow$ N₂O(g) + 3CO₂(g)

Solution

space increment subscript straight r straight H to the power of 0 space equals space sum from blank to blank of increment subscript straight f straight H to the power of 0 space left parenthesis Products right parenthesis space minus space sum from blank to blank of increment subscript straight f straight H to the power of 0 left parenthesis Reactants right parenthesis space space equals open square brackets increment subscript straight f straight H to the power of 0 left parenthesis straight N subscript 2 straight O right parenthesis space plus 3 space cross times space increment subscript straight f straight H to the power of 0 left parenthesis CO subscript 2 right parenthesis close square brackets space space space space space space space space space space space space space space space space space space space space space space space space space space space minus open square brackets increment subscript straight f straight H to the power of 0 left parenthesis straight N subscript 2 straight O subscript 4 right parenthesis space plus space 3 increment subscript straight f straight H to the power of 0 left parenthesis CO right parenthesis close square brackets equals space left square bracket 81 plus 3 left parenthesis negative 393 right parenthesis right square bracket space minus space left square bracket 9.7 plus 3 left parenthesis negative 110 right parenthesis right square bracket equals space 81 minus 1179 minus 9.7 plus 330 equals space minus 1188.7 plus 441 space equals space minus 777.7 space kJ

Some More Questions From Thermodynamics Chapter

Classify the following into different types of systems:
(i) Tea placed in a cup
(ii) Tea placed in a tea-pot
(iii) Tea placed in a thermosflask.

Define a closed system.

Define an isolated system.

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Thermodynamics

Enthalpies of formation of CO(g), CO₂(g), N₂O(g) and N₂O₄ (g) are -110, -393, 81 and 9.7 kJ mol-1. Find the value of $space increment subscript straight r straight H to the power of 0$ for the reaction:
N₂O₄ (g) + 3CO(g) $space rightwards arrow$ N₂O(g) + 3CO₂(g)

Some More Questions From Thermodynamics Chapter

Classify the following into different types of systems:
(i) Tea placed in a cup
(ii) Tea placed in a tea-pot
(iii) Tea placed in a thermosflask.

Define a closed system.

Define an isolated system.

Define intensive properties.

Define extensive properties.

Why all living systems need to be 'open systems'?

Define state variables of a system.

From thermodynamic point of view, to which system the animals and plants belong?

What is a state function?

A thermodynamic state function is a quantity

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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Thermodynamics

Enthalpies of formation of CO(g), CO2(g), N2O(g) and N2O4 (g) are -110, -393, 81 and 9.7 kJ mol-1. Find the value of for the reaction:N2O4 (g) + 3CO(g) N2O(g) + 3CO2(g)

Some More Questions From Thermodynamics Chapter

Classify the following into different types of systems:(i) Tea placed in a cup(ii) Tea placed in a tea-pot(iii) Tea placed in a thermosflask.

Define a closed system.

Define an isolated system.

Define intensive properties.

Define extensive properties.

Why all living systems need to be 'open systems'?

Define state variables of a system.

From thermodynamic point of view, to which system the animals and plants belong?

What is a state function?

A thermodynamic state function is a quantity

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Enthalpies of formation of CO(g), CO₂(g), N₂O(g) and N₂O₄ (g) are -110, -393, 81 and 9.7 kJ mol-1. Find the value of $space increment subscript straight r straight H to the power of 0$ for the reaction:
N₂O₄ (g) + 3CO(g) $space rightwards arrow$ N₂O(g) + 3CO₂(g)

Classify the following into different types of systems:
(i) Tea placed in a cup
(ii) Tea placed in a tea-pot
(iii) Tea placed in a thermosflask.