# Solution - Determine the Order of Reaction and the Dimensions of the Rate Constants - Rate of a Chemical Reaction

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#### Question

From the rate expression for the following reactions, determine their order of reaction and the dimensions of the rate constants.

H2O(aq) + 3 I− (aq) + 2 H+ → 2 H2O (l) + I_3^- Rate = k[H2O2][I]

#### Solution

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For a gaseous reaction the unit of rate of reaction is

(A) L atm s-1

(B) atm mol-1 s-1

(C) atm s1

(D) mol s

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Ammonia and oxygen react at high temperature as:

4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) In an experiment, rate of formation of NO(g) is 3.6 x 10-3 mol L-1 s -1.

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The rate of reaction for certain reaction is expressed as :

1/3(d[A])/dt=-1/2(d[B])/dt=-(d[C])/dt

The reaction is

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#### Reference Material

Solution for question: Determine the Order of Reaction and the Dimensions of the Rate Constants concept: Rate of a Chemical Reaction. For the courses 12th CBSE (Arts), 12th CBSE (Commerce), 12th CBSE (Science), PUC Karnataka Science
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