Reference no: EM131561308
Q.1. Find out the order of the following reaction. Also evaluate the unit of rate constant of the recation 'k.CH3CHO → CH4 +CO
rate = - d[CH3CHO]/dt = k[CH3CHO]3/2
Q.2 Rate of formation of NH3 is 3.0 x 10-4 molL-1sec-1. Find the rate of consumption of N2 & H2.
Q.3 Prove that the time required to complete 99.9% reaction is the 10 times of the half-life of a first order chemical kinetics.
Q.4 Establish the integrated rate expression of first order reaction.
Q.5 The experimental data of a chemical reaction 2A + B2 → 2AB is given below
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Run
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[A] (mol L-1)
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[B2] (mol L-1)
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[rate] (mol L-1sec-1)
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1
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0.50
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0.50
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1.6??10-4
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2
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0.50
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1.00
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3.2??10-4
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3
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1.00
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1.00
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3.2??10-4
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Write down the most probable rate equation for the reaction. Explain.
Q.6 Consider the following reaction 2 NO2(g) → 2NO(g) + O2(g)
At 650k, the rate constant 1.66 sec-1.
At 700k, the rate constant 7.39 sec-1.
Calculate the activation energy.
Q.7 For a first order reaction log k vs 1/t plot has a slop of -6000 K. Calculate activation energy of the reaction.
Q.8 The integrated rate expression of a n-th order reaction is given below.
1/(n-1).[1/(Cn-1) - 1/(C0n-1)] = kt
Find out the rate expression of zero order reaction. Calculate the time of completion of reaction.