Home
Class 12
CHEMISTRY
For the reaction 2NO(2)+F(2)rarr 2NO(2)F...

For the reaction `2NO_(2)+F_(2)rarr 2NO_(2)F`, following mechanism has been provided:
`NO_(2)+F_(2) overset("slow")(rarr) NO_(2)F+F`
`NO_(2)+Foverset("fast")(rarr) NO_(2)F`
Thus rate expression of the above reaction can be writtens as:

A

`r=K [NO_2][F_2]`

B

`r=K[NO_3][F_3]`

C

`r=K [NO_2]`

D

`r=K [F_3] `

Text Solution

Verified by Experts

The correct Answer is:
B
Slowest step of mechansim decides the rate expression. Thus rate `= K [NO_(2)][F_(2)]` .
Promotional Banner

Similar Questions

Explore conceptually related problems

The reaction 2NO + Br_(2) to 2NOBr , obeys the following mechanism: NO + Br_(2) overset("fast")(hArr) NOBr_(2), NOBr_(2) + NO overset("Slow")(to) 2NOBr The rate expression of the above reaction can be written as

Pb(NO_(3))_(2) overset(Delta)to PbO+NO_(2)+O_(2)

Pb(NO_(3))_(2) overset(Delta)to PbO+NO_(2)+O_(2)

The mechanism of the reaction 2NO + O_(2) rarr 2NO_(2) is NO + NO underset(k_(-1))overset(k_(1))hArr N_(2)O_(2) ("fast") N_(2)O_(2) + O_(2) overset(k_(2))rarr 2NO_(2) (slow) The rate constant of the reaction is

Complete the following reactions : i. CH_(2)=CH_(2) overset(EtONa+eTOH)rarr ii. F_(2)C=CF_(2)overset (EtONa+EtOH)rarr

A following mechanism has been proposed for a reaction 2A +B rarr D rarr E A+ B rarrC+D (slow) A+C rarr E (fast) The rate law expression for the reaction by RDS methd is:

F_3C-CH=CH_2 overset(HBr)(rarr) (A) overset(Nal) underset(dry . "acetone")(rarr) (B)

The mechanism for the overall reaction is A_(2) + B rarr C A_(2) rarr 2A (slow) 2A + B rarr X (fast) If a catalyst D changes the mechanism to A_(2) + D rarr A_(2) D (slow) A_(2) D rArr 2A+D (fast) 2A +B rarr C (fast) Which is the rate expresison for the reaction with and without a catalyst ?

In the following reaction: 2NO(g)+O_(2)(g) overset(k')rarr2NO_(2)(g) What is the predicted rate law, if the mechanism is NO+O_(2)(g) overset(k_(eq))hArr NO_(3) ("fast") (fast) NO_(3) + NO overset(k_(1))rarr NO_(2) + NO_(2) (slow)

Consider the reaction 2NO(g) + O_(2)(g) rarr 2NO_(2)(g) , Predict whether the reaction is spontaneous at 298 K. Delta_(f) G(NO) = 86.69k J//mol,Delta _(f) G ( NO_(2) = 51.84 kJ//mol