Among the following, which are affected by pressure changes

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${CaCO}_{3 (s)} \to {CaO}_{(s)} + {CO}_{2 (g)}$

$2 {NaNO}_{2 (s)} + O_{2 (g)} \to 2 {NaNO}_{3 (s)}$

${NH}_{2} {COONH}_{4 (s)} \to 2 {NH}_{3 (s)} + {CO}_{2 (g)}$

$C_{(s)} + H_{2} O_{(g)} \to {CO}_{(g)} + H_{2 (g)}$

answer is A, B, C, D.

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Detailed Solution

To the given all reactions, there is a net change in the number of moles of gaseous products and reactants $(∆ n \neq 0)$ .Hence, there is a pressure effect on the given all reactions.

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