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MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

For the reaction 4NH 5O 4NO 6H O, -> if the rate of disappearance of NH3 is 3.6 × 10–3 mol L-1 s–1, what is the rate of formation of H2O?

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

Similarly, the stoichiometric coefficient of D, A and B is 3,4 and 1 respectively. Thus using the concept, B D A C -> So, answer b is correct.

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

The rate of a reaction is expressed in different ways as follows : 1 d[C] 1 d[D] 1 d[A] d[B]. 2 dt 3 dt 4 dt dt The reaction is

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

In the reaction -> aq aq l l BrO Br H Br H O The rate of appearance of bromine (Br2) is related to rate of disappearance of bromide ions as following: (AIPMT 2009)

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

Choose the correct value of d NH dt for the reaction, N 3H 2NH -> (a) d H dt (b) d H dt (c) d N dt (d) d N dt Ans. (a) Sol. d NH d H dt dt

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

In order to express the rate at a particular moment of time we determine the …A… rate. Here A refers to

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

When the concentrations of gases is expressed in terms of their partial pressures, then the units of the rate of reaction will be

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

Find the value of from the graph shown below (a) av R r f (b) av R R r t t (c) av d R r dt (d) av R R r t t Ans. (d) Sol. av R R r t t

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

In the graph, slope is (a) inst d R r dt (b) inst d R r d P (c) inst d P r dt (d) inst d P r dt Ans. (c) Sol. Slope ⇒ inst d P r dt

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

...A… depends upon the change in concentration of reactants or products and the time taken for that change to occur. Here, A is

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

The correct expression is

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

The square brackets in the expression Δ[R] = [R]2 – [R]1 are used to express …A… Here, A is

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

Speed of a reaction can be defined as

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

The units of rate of reaction are

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

Rate of a reaction

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

The rate of reaction is defined as

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

For a reaction R ⟶ P, the concentration of a reactant changes from 0.05 M to 0.04 M in 30 minutes. What will be the average rate of reaction in minutes?

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

For the reaction A + 2B ⟶ C, the rate of reaction at a given instant can be represented by (a) d[A] 1 d[B] d[C] dt 2 dt dt

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

For the reaction. 2 HI ⟶ H2 + I2, the expression [ ] d HI dt represents

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

In a reaction 2HI ⟶ H2 + I2, the concentration of HI decreases from 0.5 mol L–1 to 0.4 mol L–1 in 10 minutes. What is the overall rate of reaction during this interval?

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

Consider the reaction, 2N O 4NO O . -> In the reaction NO2 is being formed at the rate of 0.0125 mol L–1 s–1. What is the rate of reaction at this time?

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

Chemical kinetics plays an important role in

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

A reaction having equal energies of activation for forward and reverse reaction has: (NEET 2013) (a) G (b) H (c) H G S (d) S

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

In a reaction, A + B -> Product, rate is doubled when the concentration of B is doubled, and rate increases by a factor of 8 when the concentrations of both the reactants (A and B) are doubled. Rate law for the reacti…

MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryChemical kinetics

In a zero-order reaction for every 10° rise of temperature, the rate is doubled. If the temperature is increased from 10°C to 100°C, the rate of the reaction will become: (AIPMT 2012)

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