JEE Main 18 March 2021 Shift 1 Solved Paper

According to given reaction,
2NO(g)+Cl2(g)⇌2NOCl(s)
Given data are as follows,
By rate law expression, r=k[NOx[Cl2]y
Exp (I) 0.18=k(0.1)x(0.1)y ...(i)
Exp (II) 0.35=k(0.1)x(0.2)y...(ii)
Exp (III) 1.40=k(0.2)x(0.2)y...(iii)
Dividing equation (ii) and (iii), we get
‌

0.35

1.40

=‌

k(0.1)x(0.2)y

k(0.2)x(0.2)y

‌

1

4

=(‌

1

2

)x⇒x=2
Similarly dividing equation (i) and (ii), we get
‌

1

2

=(‌

1

2

)y⇒y=1
Now, x+y= order of reactions
x+y⇒2+1⇒3
Overall, order of the reaction is 3 .