RATE




@jaidgr8 but it is not given that 0.1 is initial concentration , when i assumed Io as constant made two different equations for both concentrations and remove io by dividing them i am getting different answrr.

@YouKnowwhere I haven't understood what your doubt is ..can you pls write ur solution on a paper and post it ..along with the answer that you are getting ?

@jaidgr8
I did in this way , it comes very close now , before i did mistake of natural log , but in question log 5 is not given.

@YouKnowwhere yeah but u can write it as log(10/2) which is log10log2 ..which is nothing but 1log2