JEE Main 2020 (Online) 6th September Evening Slot | Chemical Kinetics and Nuclear Chemistry Question 71 | Chemistry

JEE Main 2020 (Online) 6th September Evening Slot

MCQ (Single Correct Answer)

-1

The value of K_C is 64 at 800 K for the reaction

N₂(g) + 3H₂(g) ⇌ 2NH₃(g)

The value of K_C for the following reaction is :

NH₃(g) ⇌ $${1 \over 2}$$N₂(g) + $${3 \over 2}$$H₂(g)

$${1 \over 8}$$

$${1 \over 4}$$

$${1 \over {64}}$$

JEE Main 2020 (Online) 6th September Morning Slot

MCQ (Single Correct Answer)

-1

Consider the following reactions

A $$ \to $$ P₁ ; B $$ \to $$ P₂ ; C $$ \to $$ P₃ ; D $$ \to $$ P₄,

The order of the above reactions are a, b, c, and d, respectively. The following graph is obtained when log[rate] vs. log[conc.] are plotted JEE Main 2020 (Online) 6th September Morning Slot Chemistry - Chemical Kinetics and Nuclear Chemistry Question 74 English

JEE Main 2020 (Online) 6th September Morning Slot Chemistry - Chemical Kinetics and Nuclear Chemistry Question 74 English

Among the following, the correct sequence for the order of the reactions is :

d > b > a > c

d > a > b > c

a > b > c > d

c > a > b > d

JEE Main 2020 (Online) 5th September Evening Slot

MCQ (Single Correct Answer)

-1

The rate constant (k) of a reaction is measured at differenct temperatures (T), and the data are plotted in the given figure. The activation energy of the reaction in kJ mol^–1 is :
(R is gas constant) JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Chemical Kinetics and Nuclear Chemistry Question 75 English

JEE Main 2020 (Online) 5th September Evening Slot Chemistry - Chemical Kinetics and Nuclear Chemistry Question 75 English

$${1 \over R}$$

$${1 \over {2R}}$$

JEE Main 2020 (Online) 5th September Morning Slot

MCQ (Single Correct Answer)

-1

A flask contains a mixture of compounds A and B. Both compounds decompose by first-order kinetics. The half-lives for A and B are 300 s and 180 s, respectively. If the concentrations of A and B are equal initially, the time required for the concentration of A to be four times that of B(in s) :
(Use ln 2 = 0.693)

180

120

300

900

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