Posted by **Julia** on Thursday, February 7, 2013 at 8:27pm.

Calculate the value of Kp for the equation

C(s)+CO2(g)<->2CO(g) Kp=?

given that at a certain temperature

C(s)+2H2O(g)<->CO2(g)+2H2(g) Kp1=3.33

H2(g)+CO2(g)<->H2O(g)+CO(g) Kp2=.733

Please show detailed steps.

- Chemistry -
**DrBob222**, Thursday, February 7, 2013 at 9:10pm
C(s)+2H2O(g)<->CO2(g)+2H2(g) Kp1=3.33

H2(g)+CO2(g)<->H2O(g)+CO(g) Kp2=.733

Multiply equation 2 by 2 and add to equation 1 to obtain:

C(s) + 2H2O + 2H2 + 2CO2 ==> CO2 + 2H2 + 2H2O + 2CO

Notice 2H2O cancels, 2H2 cancels, 1 CO2 cancels to leave

C(s) + CO2 ==> 2CO

Kp for eqn 1 is Kp1 as listed. Kp for equation 2 multiplied by 2 is K^2p and is K'p2 (0.733)^2. That's because when you multiply and equation by a coefficient(n) the k values is k^n.

When we ADD equations (as we did above), the combined k value is multiplied; i.e., kp1 x (Kp2)^2 = ?

- Chemistry -
**Julia**, Friday, February 8, 2013 at 12:17am
Thank you so much for the detailed steps. Finally understood what I need to do.

## Answer this Question

## Related Questions

- Chemistry - If someone could please be kind enough to see me through this ...
- Chemistry 2 - Calculate Kp for the reaction C(s)+CO2(g)<-->2CO(g) kp=? C(...
- Chemistry - The value of Kc for the reaction below is 1.6 C(s)+CO2(g)=2CO(g) ...
- chemistry - Ok, I really need to know how to work problems like these so could ...
- Chem - I was given a problem that my book did not explain how to do, so I ...
- Chemistry - which conversion factor do you use to first calculate the number of ...
- Chemistry (URGENT) - Balance the following equations. 3. C12H22O11 + O2 = CO2 + ...
- help - Methane, CH4, burns in oxygen gas to form water and carbon dioxide. What ...
- chemistry - could someone check my answers to see if they are right? Balance ...
- chemistry - Calculate the value of T delta S (KJ) of reaction for the equation ...

More Related Questions