Integrated Rate Equations - Zero Order Reactions

Integrated Rate Equations - Zero Order Reactions

A zero-order reaction has a rate constant of 2.0 × 10⁻³ mol L⁻¹ s⁻¹. How long will it take for the concentration to decr

t = (0.12 − 0.03)/(2.0×10⁻³) = 45 s.

Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions

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Integrated Rate Equations - Zero Order Reactions

The rate of a reaction triples when the concentration of the reactant is increased by 9 times. What is the order of the

9ⁿ = 3 → n = 0.5.

Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions

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Integrated Rate Equations - Zero Order Reactions

The molecularity of the elementary step H₂ + Br₂ → 2HBr is:

Two molecules collide → molecularity = 2.

Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions

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Integrated Rate Equations - Zero Order Reactions

A reaction has the rate law Rate = k[A][B]^(1/2). If the concentration of A is doubled and B is quadrupled, what happens

New rate = 4 × initial rate.

Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions

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Integrated Rate Equations - Zero Order Reactions

The decomposition of a gas follows first-order kinetics with an initial pressure of 0.8 atm. After 100 s, the total pres

x = 0.4, pA = 0.4. k ≈ 6.93 × 10⁻³ s⁻¹.

Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions

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Integrated Rate Equations - Zero Order Reactions

A reaction has the rate law Rate = k[A]²[B]. If the concentration of A is doubled and B is tripled, what happens to the

New rate = 12 × initial rate.

Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions

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Integrated Rate Equations - Zero Order Reactions

A reaction has the rate law Rate = k[A]^(1/2)[B]. If the concentration of A is quadrupled and B is halved, what happens

New rate = same as initial rate.

Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions

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Integrated Rate Equations - Zero Order Reactions

A first-order reaction has a half-life of 20 minutes. What fraction of the reactant remains after 60 minutes?

3 half-lives → fraction remaining = 1/8.

Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions

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Integrated Rate Equations - Zero Order Reactions

A second-order reaction has a rate constant of 0.06 L mol⁻¹ min⁻¹ and an initial concentration of 0.3 mol L⁻¹. What is t

t ≈ 111.17 min.

Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions

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Integrated Rate Equations - Zero Order Reactions

A reaction has the rate law Rate = k[A][B]². If the concentration of A is tripled and B is halved, what happens to the r

New rate = (3/4) × initial rate.

Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions

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Integrated Rate Equations - Zero Order Reactions

A second-order reaction has a rate constant of 0.06 L mol⁻¹ s⁻¹. If the initial concentration is 0.2 mol L⁻¹, what is th

t = (1/0.08 − 1/0.2)/0.06 = 125 s.

Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions

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Integrated Rate Equations - Zero Order Reactions

A first-order gaseous reaction has an initial pressure of 2.4 atm. After 40 s, the total pressure is 3.0 atm. What is th

x = 0.6, pA = 1.8. k ≈ 0.0072 s⁻¹.

Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions

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