Updated By SaraNextGen

On March 11, 2024, 11:35 AM

Question 4.5:

A first order reaction has a rate constant 1.15 10⁻³ s⁻¹. How long will 5 g of this reactant take to reduce to 3 g?

Answer:

From the Question, we can write down the following information:

Initial amount = 5 g

Final concentration = 3 g

Rate constant = 1.15 10⁻³ s⁻¹

We know that for a 1^st order reaction,

= 444.38 s

= 444 s (approx)

Question 4.6:

Time required to decompose SO₂Cl₂ to half of its initial amount is 60 minutes. If the decomposition is a first order reaction, calculate the rate constant of the reaction.

Answer:

We know that for a 1^st order reaction,

It is given that t_1/2 = 60 min