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2 years ago

7

Which of the following equations does not represent a redox reaction?

1 answer:

bija089 [108]2 years ago

4 0

Answer:

a. NH3+ HCl → NH4Cl

c. 2O3 → 3O2

Explanation:

A redox reaction is a reaction in which there is loss or gain of electrons. As a result of that , there is a change in the oxidation number of the species involved in the reaction.

If we look at the species shown in the answer, there isn't any change in oxidation number as we move from left to right hence they are not redox reactions.

Redox reactions lead to change in oxidation number of species from left to right.

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Answer:

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Explanation:

From the question we are told that

The pressure of (NO) is $P_{NO} = 9.20 \ atm$

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$\Delta G^o _{Cl_2} = 0kJ/mol$

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$\Delta G^o _{NOCl} =66.1kJ/mol$

Now substituting this into the equation

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Substituting values

$Q = \frac{(7.7)^2 }{(9.2)^2 (9.15) } = \frac{59.29}{774.456}$

$= 0.0765$

The free energy for this reaction is evaluated as

$\Delta G = \Delta G^o + RT ln Q$

Where R is gas constant with a value of $R = 8.314 J / K \cdot mol$

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Substituting value

$\Delta G = -43 *10^{3} + 8.314 *298 * ln [0.0765]$

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