Which Reaction Has the Highest Kp Value?

[Saitama]

Homework Statement

Which has the max. value of K_P-
a)MgCO₃(s) --> MgO(s)+CO₂(g)
b)CaCO₃(s) --> CaO(s)+CO₂(g)
c)SrCO₃(s) --> SrO(s)+CO₂(g)
d)BaCO₃(s) --> BaO(s)+CO₂(g)

Homework Equations

The Attempt at a Solution

I don't understand how we could determine which has the max. Kp because in all the equations Kp=P_CO2. What other factors should i look into?

Thanks!

 

[Borek]

Perhaps it asks about the ease of the thermal decomposition?

 

[Saitama]

Perhaps it asks about the ease of the thermal decomposition?

Then i guess the answer is a). Right?

 

[Borek]

If I will answer yes or no I will do your homework.

 

[Saitama]

If I will answer yes or no I will do your homework.

It isn't a homework question anyway, it is a question from a test i gave a few days ago.
But i am sure about the answer.