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$C (s) + C O_{2} (g) \overset{}{\to} 2 C O (g); Δ H = 40 k c a l m o l^{- 1}$
In a suitable reaction vessel, pieces of graphite are mixed with carbon dioxide gas at $1.00 a t m$ and $1000 K .$ Which of the following changes will result in an increase in reaction rate?

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decrease in size of the graphite pieces

increase in temperature

decrease in partial pressure of $C O (g)$

increase in partial pressure of $C O_{2} (g)$

answer is A, B, D.

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Detailed Solution

A) Decrease in size of graphite pieces, increases the surface area which in turn increases the rate.
B) Increase in temperature increases the rate due to increase in molecules with energy of activation.

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