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### 11.83

Posted: Tue Feb 06, 2018 3:34 pm
For question 11.83: Calculate the equilibrium constant at 25 C and at
150 C for each of the following reactions, using data available in Appendix 2A:
(a) NH4Cl(s) <--> NH3(g) + HCl(g)
(b) H2(g) + D2O(l) <--> D2(g) + H2O(l)
Is the calculation different when the temperature is at 150 other than the value of T changing? I am using the equation delta G=-RTlnK and I am getting the right answers when calculating K at 25 degrees but when I do the same calculation using 150 degrees I am getting wrong answers.

### Re: 11.83

Posted: Tue Feb 06, 2018 4:53 pm
You should be able to use the same equation and values and just change T to get the right answer. Just make sure you use Kelvin!

### Re: 11.83

Posted: Wed Feb 07, 2018 7:03 pm
This isn't what the solution manual says? Can someone explain how to approach this problem?

### Re: 11.83

Posted: Wed Feb 14, 2018 1:32 pm
For 298K, you can use the equation to find the K value. For 423K, use the equation