Chemical Thermodynamics Question 485
Question: Consider the following reaction occuring in an automobile engine : $ 2C_8H_{18}(l)+25,O_2(g)\to 16,CO_2(g)+18,H_2O(g) $ of $ \Delta H,,\Delta S $ and $ \Delta G $ would be:
Options:
A) - + +
B) - - +
C) + + -
D) - + -
Show Answer
Answer:
Correct Answer: D
Solution:
- It is a combustion reaction, $ \Delta H<0;,\Delta n_{g}>0,\Delta s>0 $ and therefore $ \Delta G<0 $
