Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 10 Jul 2017 My Price 11.00

concentration of the reactant decrease

In a first order reaction, the concentration of the reactant decreases from 0.8 M to 0.4 M in 15 minutes. The time taken for the concentration to change from 0.1 M to 0.025 M is [AIEEE 2004]

A 7.5 min
B 15 min
C 30 min
D 60 min
Question 9

The rate equation for the reaction:

2A + B ? C is found to be: rate = k [A] [B]. The correct statement in relation to this reaction is that the [AIEEE 2004]

A

units of k must be s–1
B

t1/2 is constant
C rate of formation of C is twice the rate of disappearance of A
D value of k is independent of the initial concentration of A and B.
Question 10

The velocity constant of a reaction at 290° K was found to be
3.2 × 10–3 S–1. When the temperature is raised to 310° K, it will be about: [Karnataka CET 2004]

A

9.6 × 10–3

B

1.28 × 10–2

C

6.4 × 10–3

D

3.2 × 10–4

Answers

Maurice Tutor
(5)
Status NEW Posted 10 Jul 2017 08:07 PM My Price 11.00

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