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Suleiman
Questions (6)
Construct a triangle KLM,if kl=8cm,lm=10cm and km=6cm.measure the largest angle of the triangle.
2 answers
644 views
A piece of copper of mass 400g at the temperature of 1000°c is quickly transferred to a vessel of negligible thermal capacity
2 answers
708 views
The irreversible elementary reaction 2A ---+ B takes place in the gas
phase in an isothermal tubular (plug-Jlow) reactor.
2 answers
1,419 views
what is the R.F of 2.5cm to 4cm?
3 answers
454 views
The 90 members of a sport club play at least one of the games,tennis,football and volleyball. 10 play tennis and football,19
1 answer
947 views
The 90 members of a sports club play at least one of the games,tennis,football and volleyball. 10 play tennis and football,19
3 answers
2,705 views
Answers (3)
Yes
Answer
From Arhenius Equation ln(k1/k2)= Ea/R((T1-T2)/(T1T2)) The ratio of rate constant is 1:3; R= 8.314JK.mole T1=288K T2=308K So; ln(1/3)=Ea/8.314((288-308)/(288x308)) Ea=4.05x10⁴J or 4.05x10¹Kj
