Question

Ulasa-
4. For a first order reaction A product with initial concentration x mol per L, has
a half life period of 2.5 hours. For the same reaction with initial concentration (x/2)
mol per L the half life is
a) (2.5×2) hours
b)(2.5/2) hours
c) 2.5 hours
d) without knowing the rate constant, t1/2 cannot be determined from the given data ​

Answer 1

Answer:

option b is correct...

x ----------> 2.5

x/2 --------> ?

2.5÷2

hope this helps you ..