Question

What do you mean by a elementary reaction

Answer 1

1st reaction is called elementary reaction

Answer 2

⭐ $\sf\underline\pink{ \: \: Elementary \: \: reaction }$ :- The reactions taking place in one step are called elementary reactions.

• The first order reaction gets completed in infinite time.

❤ K = $\frac{2.303}{t}$ log $\frac{a}{a~-~x}$

❤ t = $\frac{2.303}{k}$ log $\frac{a}{a~-~x}$

Where,

• a is the initial concentration.
• a - x is the left concentration.

☃️ $\tt\underline\purple{ \: \: Proof \: \: :- }$

• a - x = 0

❤ t = $\frac{2.303}{t}$ log $\frac{a}{a~-~x}$

❤ t = $\frac{2.303}{k}$ log $\frac{a}{0}$

❤ t = ∞