EX2 · Question 7 Consider the following reaction at equilibrium. What effect wil

Question

EX2

·       Question 7

Consider the following reaction at equilibrium. What effect will adding some C(graphite)  have on the system?

CO2(g)  + C(graphite)    2CO(g)

·       Question 8

·       Question 9

What are the units of k in the following rate law?

Rate = k[X]2[Y]2

Consider the following reaction at equilibrium. What effect will adding some C(graphite)  have on the system?

CO2(g)  + C(graphite)    2CO(g)

Write a balanced reaction for which the following rate relationships are true. 1 AINO2] A[O2] 1 AN2051 Rate 2 At At At

Explanation / Answer

Q7

Consider the following reaction at equilibrium. What effect will adding some C(graphite) have on the system? CO2(g) + C(graphite) 2CO(g)

Since C is solid, there is no effect in euqilibrium, since it is a solid

Q8.

Simply multiply all by 4

N2O4, NO2, O2 --> -2N2O5 = +NO2 + 4O2

reaction is then

4NO2 + O2 = 2N2O5

Q9-.

units for :

Rate = K[X]^2[Y]^2

Rate = M/s always

[X] = M always

so

Rate = K[X]^2[Y]^2

M/s = K*(M)^2(M)^2

M/s = K*(M^4)

K = 1/M^3 - s

or

K = M^-3 * s^-1

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