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(C) For any chemical reaction,the rate of reaction is defined as the change in concentration or partial pressure of a reactant or product per unit tim

Vedclass · Accepted Answer

$atm \cdot sec^{-1}$

Vedclass · Answer

(C) For any chemical reaction,the rate of reaction is defined as the change in concentration or partial pressure of a reactant or product per unit time.For a gaseous reaction,the rate is expressed as the change in partial pressure $(P)$ per unit time $(t)$.Therefore,the unit of the rate of reaction is $\frac{	ext{pressure}}{	ext{time}}$,which is $atm \cdot sec^{-1}$ or $atm \cdot s^{-1}$.Note: While the rate constant $(k)$ for a first-order reaction has units of $s^{-1}$,the rate of the reaction itself always has units of $	ext{concentration} \cdot 	ext{time}^{-1}$ or $	ext{pressure} \cdot 	ext{time}^{-1}$.

If the first order reaction involves gaseous reactants and gaseous products,the units of its rate are:

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