Question

the rate of a chemical reaction : (a)increases as the reaction proceeds;(b)decreases as the reaction proceeds (c)may increase or decrease during the reaction (d) reamins constant as the reaction proceeds​

Answer 1

Answer:

ANSWER

The rate of chemical reaction is directly proportional to the concentration of the reactants i.e. rate of reaction decreases with decrease of concentration and increases with increase in concentration. As the reaction progresses the reactant is converted into the product and thus the concentration of reactants decreases while that of the products increases.

Answer 2

Explanation:

a) The rate of reaction or speed of reaction for a reactant or product is defined as how fast or slow a reaction takes place. The rate of reaction decreases as the reaction proceeds because the concentration of reactants is high at the start and with time, this concentration decreases and the reaction gets slower.

b) The rate of chemical reaction always decreases with time as reaction proceeds due to decrease in number of reactant molecules. Only for zero order reactions the rate of chemical reaction remains same.

c) The rate of chemical reaction always decreases with time as reaction proceeds due to decrease in number of reactant molecules. Only for zero order reactions the rate of chemical reaction remains same.

d) The rate of reaction or speed of reaction for a reactant or product is defined as how fast or slow a reaction takes place. The rate of reaction decreases as the reaction proceeds because the concentration of reactants is high at the start and with time, this concentration decreases and the reaction gets slower. So, the rate of reaction is dependent on concentration and hence, decreases with the passage of time.

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