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  • A graph of volume of hydrogen released vs time for the reaction between zinc and dil HCl is given in Fig 4 2 On the basis of this mark the correct option

A graph of volume of hydrogen released vs time for the reaction between zinc and dil.HCl is given in Fig. 4.2. On the basis of this mark the correct option.

(i) Average rate up to 40 s is \frac{V_{3}-V_{2}}{40}

(ii) Average rate up to 40 seconds is \frac{V_{}3- V_{}2}{40-30}

(ii) Average rate up to 40 seconds is \frac{V_{}3}{40}

(iv) Average rate up to 40 seconds is \frac{V_{}3- V_{}1}{40-20}

 

 

Answers (1)

The answer is the option (iii) Average rate of the reaction can be determined by a change in concentration of  H_{2} upon time from (0,0) to (40, V_{3})=\frac{V_{3}-0}{40-0}=\frac{V_{3}}{40}

The average rate of a reaction is the rate of change of a reactant or product over a specific time interval. 

The average rate of reaction can be found from a graph by calculating the change in concentration over the change in time from the beginning to the end of the reaction.

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