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Which of the above given curves is wrongly presented?

Question

Which of the above given curves is wrongly presented?

A

C \to C O_{2}

B

P b \to P b O

C

Z r \to Z r O_{2}

D

M g \to M g O

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Text solutionVerified

For the transformation

P b \to P b O

, the curve is wrongly represented.

Consider the reaction

2 P b (s) + O_{2} (g) \to 2 P b O (s)

This is the combustion reaction. It is exothermic in nature.

Hence, for this reaction,

Δ H

is negative.

For the above reaction,

Δ n < 0

. Hence,

Δ S

is negative.

At low temperature,

Δ G

will be negative, as the temperature increases,

Δ G

value increases and becomes positive.

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Question Text	Which of the above given curves is wrongly presented?
Answer Type	Text solution:1
Upvotes	150