An optically active compound A is hydrolysed by dilute acid to give two optically active compounds, B and C according to the following chemical equation, A+H_(2)O to 2B+C. The angle of rotation after 40 minutes was observed to be 26^(@) and that after completion of reaction was 10^(@) at 27^(@)C. Find the half-time of the reaction assuming it to follow pseudo first order kinetics. The observed rotation per mole of A, B and C are 60^(@) , 50^(@) and -80^(@). A plot of logarithm of rate constant of the above reaction vs T^(-1) give straight line with intercept equal to 15.046 on log k axis. Calculate at what temperature half-time of the reaction will be 31.1 min.

An optically active compound A is hydrolysed by dilute acid to give tw

1.	An optically active compound A is hydrolysed by dilute acid to give two optically active compounds, B and C according to the following chemical equation, A+H_(2)O to 2B+C. The angle of rotation after 40 minutes was observed to be 26^(@) and that after completion of reaction was 10^(@) at 27^(@)C. Find the half-time of the reaction assuming it to follow pseudo first order kinetics. The observed rotation per mole of A, B and C are 60^(@) , 50^(@) and -80^(@). A plot of logarithm of rate constant of the above reaction vs T^(-1) give straight line with intercept equal to 15.046 on log k axis. Calculate at what temperature half-time of the reaction will be 31.1 min.
Answer» ANSWER :`310.80K`