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 ?

20 s

No worries! We‘ve got your back. Try BYJU‘S free classes today!

25 s

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

30 s

No worries! We‘ve got your back. Try BYJU‘S free classes today!

40 s

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D 25 s
$20 % c o m p l e t e d r e a c t i o n m e a n s l e f t a m o u n t A = 80 i n i t i a l a m o u n t A_{\circ} = 100 a n d t h e r e a c t i o n i s c o m p l e t e d i n t = 10 s S i m i l a r l y f o r 50 %, l e f t a m o u n t A = 50 i n i t i a l a m o u n t A_{\circ} = 100 A = A_{\circ} - k t 80 = 100 - k \times 10 k \times 10 = 20 k = 2 m o l l^{- 1} s^{- 1} A = A_{\circ} - k t 50 = 100 - 2 \times t 2 t = 50 t = 25 s$

Suggest Corrections

Similar questions

50 %

20 min.

90 %

20 %

5

60 %

50

1.26 \times 10^{14} s

100

50

69.3

90

Join BYJU'S Learning Program