मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Answer the following in brief. What are the units of the rate constant? - Chemistry

Advertisements
Advertisements

प्रश्न

Answer the following in brief.

What are the units of the rate constant?

एका वाक्यात उत्तर

उत्तर

The unit of the rate constant for the zero-order reaction is mol dm-3 s-1.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Chemical Kinetics - Exercises [पृष्ठ १३७]

APPEARS IN

बालभारती Chemistry [English] 12 Standard HSC
पाठ 6 Chemical Kinetics
Exercises | Q 3. xiii. c. | पृष्ठ १३७

संबंधित प्रश्‍न

How will you represent first order reactions graphically.


Answer the following in brief.

Give one example and explain why it is pseudo-first-order.


Write a mathematical expression for integrated rate law for zero-order reaction.


Define half life of a reaction.


A zero-order reaction \[\ce{X -> Product}\], with an initial concentration 0.02 M has a half-life of 10 min. if one starts with concentration 0.04 M, then the half-life is


The rate constant of a reaction is 5.8 × 10−2 s−1. The order of the reaction is ____________.


Give two examples for zero order reaction.


Identify the order for the following reaction.

Radioactive disintegration of 92U238


The time for half change in a first order decomposition of a substance A is 60 seconds. Calculate the rate constant. How much of A will be left after 180 seconds?


A zero order reaction is 20% complete in 20 minutes. Calculate the value of the rate constant. In what time will the reaction be 80% complete?


A reaction that is of the first order with respect to reactant A has a rate constant 6 min−1. If we start with [A]0 = 0.5 mol dm−3, when would [A] reach the value 0.05 mol dm−3?


Which among the following reaction is an example of a zero order reaction?


What is the order of reaction if the unit of rate constant (k) is mol dm−3 s−1?


If time required to decrease concentration of reactant from 0.8 M to 0.2 M is 12 hours, the half life of this first order reaction is ____________.


Which of the following represents the expression for `(3/4)^"th"` life of 1st order reaction?


The order of the reaction for which the unit of rate constant is s−1 is ____________.


For first order reaction the slope of the graph of log10 [A]t Vs. time is equal to ____________.


A first order reaction is 75% completed in 60 minutes, the time required for it's 50% completion is ____________.


Reaction given below follows first order kinetics:

\[\ce{2N2O2 -> 4NO2 + O2}\]

Calculate the rate constant of reaction if concentration of N2O2 is 0.05 M and rate of reaction is 1.5 × 10−6 mol L−1 s−1?


A first order reaction takes 40 minutes for 30% completion. Calculate the half-life of reaction.


A first order reaction is 50% completed in 16 minutes. The percentage of reactant that will react in 32 minutes is ____________.


Which is the unit of rate constant for the first-order reaction if time is expressed in seconds?


Rate constant for zero order reaction is 2 × 10-2 mol L-1 s-1. If the concentration of the reactant after 25 sec. is 0.5 M, what is the initial concentration of reactant?


Obtain the expression for half-life and rate constant of the first-order reaction.


Define the half-life of a first-order reaction.


The rate constant and half-life of a first order reaction are related to each other as ______.


The rate constant for a first order reaction is 7.0 × 10-4 s-1. If initial concentration of reactant is 0.080 M, what is the half-life of reaction?


A radioactive isotope decayed to 17/32 of its original mass after 60 minutes. Find the half-life of this radioisotope.


What is the rate constant of a first order reaction if 0.08 mole of reactant reduces to 0.02 mole in 23.03 minutes?


The half-life of first order reaction is 1.7 hour. What is its rate constant?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×