At 100 K, a reaction is `30%` complete in 10 minutes, while at 200 K, 30% is complete in 5 minutes . The activation energy of the reaction is :

Question

At 100 K, a reaction is `30%` complete in 10 minutes, while at 200 K, 30% is complete in 5 minutes . The activation energy of the reaction is :

At 100 K, a reaction is `30%` complete in 10 minutes, while at 200 K, 30% is complete in 5 minutes . The activation energy of the reaction is :
A. `2050 J`
B. 4000 J
C. 3000 J
D. 1150 J

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
We know:
`log_(10)((k_(2))/(k_(1)))=(E_(a))/(2.303R)xx((1)/(T_(1))-(1)/(T_(2)))`
`log_(2)=(E_(a))/(2.303xx8.314)xx((1)/(100)-(1)/(200))`
`E_(a)=1150 J "mol"^(-1)`

5 views Answered 2023-02-05 15:29