2. Two radioactive nuclides A and B have half life 175 min and 25 mins respectively. A fresh sample
contains nuclides of B to be 32 times that of A. How much time should elapse so that number of nuclides
of A becomes twice that of B ?

Question

Adarsh · Answer

Dear, use the formula of half life time for 1 st order reaction , t 1/2 =0.693/k find k for both reaction then using integrated rate law for 1 st order reaction find the value of time integrated rate law = ln [A] = – kt + ln [A] o hope this will help , if you are not able to get the answer then let me know i will send you step by step solution .. Thanks and Regards Adarsh

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2. Two radioactive nuclides A and B have half life 175 min and 25 mins respectively. A fresh sample contains nuclides of B to be 32 times that of A. How much time should elapse so that number of nuclides of A becomes twice that of B ?

2. Two radioactive nuclides A and B have half life 175 min and 25 mins respectively. A fresh sample
contains nuclides of B to be 32 times that of A. How much time should elapse so that number of nuclides
of A becomes twice that of B ?

1 Answers

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2. Two radioactive nuclides A and B have half life 175 min and 25 mins respectively. A fresh sample contains nuclides of B to be 32 times that of A. How much time should elapse so that number of nuclides of A becomes twice that of B ?

2. Two radioactive nuclides A and B have half life 175 min and 25 mins respectively. A fresh samplecontains nuclides of B to be 32 times that of A. How much time should elapse so that number of nuclidesof A becomes twice that of B ?

1 Answers

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2. Two radioactive nuclides A and B have half life 175 min and 25 mins respectively. A fresh sample
contains nuclides of B to be 32 times that of A. How much time should elapse so that number of nuclides
of A becomes twice that of B ?