For a reaction, a plot of ln K versus inverse temperature is found to be linear and fits the following equation: y = -1,498x + 7
.14. What is the value of ΔH? Give your answer with units of kJ/molK; however, you should not type in the units
1 answer:
Answer:
12.455 KJ/molK = ΔH
Explanation:
One way to write Van't Hoff equation is:
lnK = -ΔH / RT + ΔS/R
<em>Where R is gas constant (8.314472 J/molK)</em>
The graph of lnK vs 1/T has as slope -ΔH / R and as intercept ΔS/R
If in the graph you obtain the equation:
y = -1,498x + 7.14
-1,498 = -ΔH / R
-1,498×8.314472J/molK = -ΔH
12455 J/molK = ΔH
<em>12.455 KJ/molK = ΔH</em>
<em></em>
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