14. Solution to Chemistry Problem

14. Solution to Chemistry Problem

1. 100 g of acetone were introduced into a closed vessel and heated to 510 C. At this temperature, acetone decomposes according to a first-order reaction: CH3COCH3=C2H4 CO H2
83.6 kJ of heat were absorbed in 12.5 min. Calculate the half-life and the rate constant of acetone decomposition. How much heat will be absorbed in 50 min? Enthalpies of formation of substances at the reaction temperature:
Substance ΔН0783, kJ*mol-1.
CH3COCH3 -235.6
C2H4 40.7
CO -110.8

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