Question

Q3. Riddhi has xy – 2xy2 summer dresses. Yukti has 2xy2 + x more dresses than Riddhi. On a festival day both decided to donate few dresses such that they are together left with 9x + 3xy – 12xy2 dresses. a.)Find the number of dresses Yukti has. b.)Find the total number of dresses both have together. c.) How many dresses did they donate?

Answer 1

Step-by-step explanation:

Take reaction (i) and (iii) to be equilibrium reaction where value of k

f

>>>k

b

Therefore,

[X

2

]

[X]

2

=K

e

′

∴[X]=K

e

′

0.5

×[X

2

]

0.5

−(A)

Since reaction (ii) is the slowest step, so the rate of this reaction will be reaction rate for the main reaction.

∴r=K

e

[X][Y

2

] −(B)

Substituting equation (A) in equation (B)

We get r=K

e

×K

e

′

0.5

[X

2

]

0.5

[Y

2

]

Let K

e

×K

e

′

=K

∴r=K[X

2

]

0.5

[Y

2

]

Hence, order of reaction is 1+0.5=1.5