Trying to find the right answer to this..

The reaction in which rate of reaction is directly proportional to concentration of reactant i.e., sum of powers to which concentration terms are raised is equal to unity e.g., Rate = k[N₂O₅], where ‘k’ is rate constant and its unit is s^–1.

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44. Define second order reaction? Give one example and units of K.

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45. In some cases it is found that a large number of colliding molecules have energy more than threshold value, yet the reaction is slow. Why?

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46. How does the value of rate constant vary with reactant concentration?

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47. A substance with initial con-centration ‘a’ follows zero order kinetics. In how much time will the reaction go to complet-ion?

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48. The reaction A + B → C has zero order. What is the rate equation?

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49. What is the effect of temperature on the rate constant of reaction? How can this temperature effect on rate constant be represented quantitatively?

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50. What is the shape between log k vs

\frac{1}{T}

?
What is the relationship between its slope and activation energy (Ea) ?

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