Question

why rate of reaction is always positive or why rate of reaction can not have aa negative value

Answer 1

$ASSALAMUALAIKUM$

The concentration of a reactantalways decreases with time, so and are both negative. Sincenegative rates do not make much sense, rates expressed in terms of a reactant concentration are alwayspreceded by a minus sign to make the rate come out positive.

$INSHAALLAH it will help you!$

$\mathbb{\huge{A.K.}}$

Answer 2

Answer:

The Rate of a Chemical Reaction is always positive. It can be confusing since the Rate of Disappearance is negative, however when you think about it, a rate should never be negative since the rate is describing how fast the concentration changes with time. The units for the rate is Molarity per Seconds (M/s)

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