1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

# Following data are given for the reaction between A and B.[A]/mol L−1[B]/mol L−1Initial rate/ mol L−1s−1 at300 K320 K2.5×10−43.0×10−55.0×10−42.0×10−35.0×10−46.0×10−54.0×10−3-1.0×10−36.0×10−51.6×10−2-The rate constant at 300 K is:

A
2.67×108m2s1
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
1.08×104m2s1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
3.52×109m2s1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
4.57×104m2s1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

## The correct option is B 2.67×108m−2s−1Let rate= K[A]x[B]y⇒5×10−4=K[2.5×10−4]x[3×10−5]y......(1)⇒4×10−3=K[5×10−4]x[6×10−5]y....(2)⇒1.6×10−2=K[10×10−4]x[6×10−5]y....(3)From (2) and (3), 14=(12)x⇒x=2From (1) and (2), 18=(12)2(12)y⇒y=1∴Rate=K[A]2[B]∴5×10−4=K(2.5×10−4)2(3×10−5)⇒K=2.67×108m−2s−1

Suggest Corrections
1
Join BYJU'S Learning Program
Related Videos
Types of Elementary Reactions
CHEMISTRY
Watch in App
Join BYJU'S Learning Program