# Which Reaction Has the Highest Kp Value?

• Saitama
In summary, the question is asking which of the given equations has the maximum value of KP. The equations are all related to thermal decomposition and the value of KP is determined by PCO2. It is possible that the question is asking about the ease of thermal decomposition, and in this case, the answer would be a). However, without further information, it is difficult to determine the exact answer.
Saitama

## Homework Statement

Which has the max. value of KP-
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)

## The Attempt at a Solution

I don't understand how we could determine which has the max. Kp because in all the equations Kp=PCO2. What other factors should i look into?

Thanks!

Borek said:

Then i guess the answer is a). Right?

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

Borek said:
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.

## 1. What is the Kp value in a reaction?

The Kp value, also known as the equilibrium constant in terms of partial pressures, is a measure of the extent to which a chemical reaction proceeds towards completion. It is calculated by taking the ratio of the products' partial pressures to the reactants' partial pressures, each raised to the power of their respective coefficients in the balanced chemical equation.

## 2. How can I determine which reaction has the highest Kp value?

The reaction with the highest Kp value is the one that has the largest ratio of products' partial pressures to the reactants' partial pressures. This can be determined by arranging the reactions in order of increasing Kp values and comparing the ratios of the partial pressures.

## 3. Can the Kp value change for a reaction?

Yes, the Kp value can change for a reaction under different conditions such as temperature, pressure, or changes in concentration of reactants or products. This is because the Kp value is dependent on the equilibrium concentrations of the reactants and products, which can vary under different conditions.

## 4. What does a high Kp value indicate about a reaction?

A high Kp value indicates that the reaction strongly favors the formation of products and that the equilibrium lies far to the right. This means that at equilibrium, there will be a higher concentration of products compared to reactants, and the reaction is more likely to proceed towards completion.

## 5. Is a higher Kp value always desirable in a reaction?

Not necessarily. While a higher Kp value indicates a more favorable reaction, it may not always be desirable depending on the specific reaction and its purpose. Some reactions require a specific equilibrium concentration of reactants and products, and a high Kp value may not be ideal in these cases.

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