1.

For a reaction AtoB, the rate of reaction can be denoted by -(dA)/(dt)" or "+(dB)/(dt). State the significance of plus and minus signs in this case.

Answer»

Solution :Rate of reaction is always positive. Minus SIGN INDICATES decrease in the concentration of the reactant, i.e., `d[A]` is -ve so that `(-)xx(-)=+"ve"`. PLUS sign indicates INCREASE in the concentration of the product with time during the reaction, i.e., `d[B]` is + ve.


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