NEET Chemistry Chemical Kinetics Questions Solved

The half life time for the decomposition of a substance dissolved in CCl4 is 2.5 hour at 30°C. How much of the substance will be left after 10 hours, if the initial weight of the substance is 160 gm ?

(A) 20 gm                                                          

(B) 30 gm

(C) 40 gm                                                          

(D) 10 gm

(D) No of half life periods

=Total timeTime of one half life period=102.5=4

Now we know that the quantity=1/24×160=1602×2×2×2=10gm


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