Chemical Kinetics and Nuclear ChemistryHard
Question
A substance ″A″ decomposes in solution following the first order kinetics. Flask I contains 1 L of 1 M solution of A and flask II contains 100 mL of 0.6 M solution. After 8 hr. the concentration, of A in flask I becomes 0.25 m. What will be the time for concentration of A in flask II to becomes 0.3 M ?
Options
A.0.4 hr
B.0.4 hr 2.4 hr
C.4.0 hr
D.Unpredictable as rate constant is not given
Solution
Flask I:
t1/2 = 4 hr.
Flask II:
0.6 M
0.3 M
A first order reaction is independent of the initial concentration of the reactant.
Hence, answer is (c).
t1/2 = 4 hr.
Flask II:
0.6 M
0.3 MA first order reaction is independent of the initial concentration of the reactant.
Hence, answer is (c).
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