Class 12

17. ⁠Chemical kinetics question bank (Chemistry)

Practice 2,268 free Class 12 Chemistry - 17. ⁠Chemical kinetics questions with answers and step-by-step solutions.

Start free Book a demo
All Easy Hard Medium
Q1.

Consider the chemical reaction:  
N₂(g) + 3H₂(g) ⟶ 2NH₃(g)  
The rate of this reaction can be expressed in terms of concentration of N₂(g), H₂(g) or NH₃(g). Identify the correct relationship amongst the rate expressions.  

(A)
Rate = –d[N₂]/dt = –(1/3) d[H₂]/dt = (1/2) d[NH₃]/dt
(B)
Rate = –d[N₂]/dt = –3 d[H₂]/dt = 2 d[NH₃]/dt
(C)
Rate = d[N₂]/dt = (1/3) d[H₂]/dt = (1/2) d[NH₃]/dt
(D)
Rate = –d[N₂]/dt = –d[H₂]/dt = d[NH₃]/dt
Show answer & solution
Verified Answer & Solution Locked
Sign in to your free student account to reveal verified answers, instant hints, and detailed explanations.
Sign in to view
Q2.

In the formation of sulphur trioxide by the contact process  
2SOâ‚‚(g) + Oâ‚‚(g) ⟶ 2SO₃(g); the rate of reaction is expressed as  
"“d[Oâ‚‚]/dt = 2.5 × 10⁻⁴ mol L⁻¹ s⁻¹  
The rate of disappearance of (SOâ‚‚) will be  

(A)
5 × 10⁻⁴ mol L⁻¹ s⁻¹
(B)
"“2.25 × 10⁻⁴ mol L⁻¹ s⁻¹
(C)
3.75 × 10⁻⁴ mol L⁻¹ s⁻¹
(D)
50.0 × 10⁻⁴ mol L⁻¹ s⁻¹
Show answer & solution
Verified Answer & Solution Locked
Sign in to your free student account to reveal verified answers, instant hints, and detailed explanations.
Sign in to view
Protected Questions

Unlock All 766 Questions in 17. ⁠Chemical kinetics

Log in or sign up free to access every question with complete solutions, create chapter practice tests, and track your performance.

Sign in to unlock Create free account

Sign up free to access all 766 questions

Unlock every 17. ⁠Chemical kinetics question, generate papers, and practice at your own pace.

Start free