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In a zero order reaction, 20% of the reaction complete in 10 s

Question

In a zero order reaction, 20% of the reaction complete in 10 s. How much time it will take to complete 50% of the reaction ?

A

20 s

B

25 s

C

30 s

D

40 s

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In a zero order reaction, 20% of the reaction complete in 10 s. How much time it will take to complete 50% of the reaction ?

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Text solutionVerified

20% co m pl e t e d re a c t i o n m e an s l e f t am o u n t A = 80 ini t ia l am o u n t A_{\circ} = 100 an d t h e re a c t i o n i s co m pl e t e d in t = 10 s S imi l a r l y f or 50%, l e f t am o u n t A = 50 ini t ia l am o u n t A_{\circ} = 100 A = A_{\circ} - k t 80 = 100 - k \times 10 k \times 10 = 20 k = 2 m o l l^{- 1} s^{- 1} A = A_{\circ} - k t 50 = 100 - 2 \times t 2 t = 50 t = 25 s

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Question Text	In a zero order reaction, 20% of the reaction complete in 10 s. How much time it will take to complete 50% of the reaction ?
Answer Type	Text solution:1
Upvotes	150