
To calculate:

Answer to Problem 19.113QA
Solution:
a)
b)
Explanation of Solution
1) Concept:
We are given two balanced reactions of methanogenic bacteria and asked to find the
2) Formula:
3) Given:
i) Standard enthalpy formation value for formic acid
ii) Standard enthalpy formation value for
iii) Standard enthalpy formation value for
iv) Standard enthalpy formation value for
v) Standard enthalpy formation value for
vi)
vii)
4) Calculations:
(1) Calculating standard enthalpy for the first given reaction:
Calculating
Plugging in the values in the equation, we get:
2) Calculating standard enthalpy for second reaction:
Plugging in the values in the equation, we get:
Conclusion:
Using standard enthalpy values from Appendix 4, we calculated the enthalpy of reactions of methanogenic bacteria.
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Chapter 19 Solutions
CHEM:ATOM FOC 2E CL (TEXT)
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