Dependence of Rate on Concentration
CHXII04:CHEMICAL KINETICS

320207 If decomposition of hydrogen peroxide is a first order reaction, it's rate law equation can be represented as

1 r=k[H2O2]
2 r=k[H2O2]
3 r=k[H2O][O2]1/2[H2O2]
4 r=k[H2O][H2O2][O2]1/2
CHXII04:CHEMICAL KINETICS

320208 The rate constant for the reaction,
2 N2O54NO2+O2 is 3.0×105 s1
If the rate is 2.40×105 mol L1 S1, then the concentration of N2O5 (in mol L1) is

1 1.4
2 1.2
3 0.04
4 0.8
CHXII04:CHEMICAL KINETICS

320206 A reaction is first order with respective to A and second order with respective to B. What is the effect on reaction rate if concentration of B is increase 3 times?

1 Rate increases 6 times
2 Rate increases 9 times
3 Rate increases 2 times
4 Rate increases 3 times
CHXII04:CHEMICAL KINETICS

320207 If decomposition of hydrogen peroxide is a first order reaction, it's rate law equation can be represented as

1 r=k[H2O2]
2 r=k[H2O2]
3 r=k[H2O][O2]1/2[H2O2]
4 r=k[H2O][H2O2][O2]1/2
CHXII04:CHEMICAL KINETICS

320208 The rate constant for the reaction,
2 N2O54NO2+O2 is 3.0×105 s1
If the rate is 2.40×105 mol L1 S1, then the concentration of N2O5 (in mol L1) is

1 1.4
2 1.2
3 0.04
4 0.8
CHXII04:CHEMICAL KINETICS

320206 A reaction is first order with respective to A and second order with respective to B. What is the effect on reaction rate if concentration of B is increase 3 times?

1 Rate increases 6 times
2 Rate increases 9 times
3 Rate increases 2 times
4 Rate increases 3 times
CHXII04:CHEMICAL KINETICS

320207 If decomposition of hydrogen peroxide is a first order reaction, it's rate law equation can be represented as

1 r=k[H2O2]
2 r=k[H2O2]
3 r=k[H2O][O2]1/2[H2O2]
4 r=k[H2O][H2O2][O2]1/2
CHXII04:CHEMICAL KINETICS

320208 The rate constant for the reaction,
2 N2O54NO2+O2 is 3.0×105 s1
If the rate is 2.40×105 mol L1 S1, then the concentration of N2O5 (in mol L1) is

1 1.4
2 1.2
3 0.04
4 0.8