71, 75% of a first order reaction is completed in 30min: What is the t – InterviewSolution

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1.

71, 75% of a first order reaction is completed in 30min: What is the time required for 93.75%completion of the reaction (in minutes)?(a) 45 (b) 12090 (d) 60

Answer»

as this is a first order reaction

75=50+25=30min

50+25+12.5=87.5=60min

50+25+12.5+6.25=93.75=120min

hence option b

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