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At 27'c temperature time required for 75 percent completion of first order reaction is 20 sec than rate constant?
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At 27'c temperature time required for 75 percent completion of first o...
Rate constant (k) for 1st order of of reaction is given by K = 2.303 (log [Ao] / [At ] ) / t Hence Here 75% reaction completed that means 75 % of Ao (initial concentration) is converted to product hence now only 25 % is At ( final concentration) is present,,,,,,, means 1/4th of Ao At = 1/4 Ao..................... hence K=2.303(log [Ao]/ (1/4* [Ao ]) )/tk=2.303 ( log 4)/ tput the values of log 4= 0.6021 and t=20 sk= 2.303 * 0.6021/20 k= 0.0693 is the answer.
Community Answer
At 27'c temperature time required for 75 percent completion of first o...
0.069 min^-1
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At 27'c temperature time required for 75 percent completion of first order reaction is 20 sec than rate constant?
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