Asked by anon
Given these reactions :
X(s) + 1/2O2(g) --> XO(s) (Delta)H= -707.7 kj
XCO3(s) --> XO(s)+CO2(g) (Delta)H= +381.9kj
What is (delta)Hrxm for this reaction?
X(s)+1/2 O2(g)+CO2(g) ---> XCO3(s)
(Delta)H= ?
X(s) + 1/2O2(g) --> XO(s) (Delta)H= -707.7 kj
XCO3(s) --> XO(s)+CO2(g) (Delta)H= +381.9kj
What is (delta)Hrxm for this reaction?
X(s)+1/2 O2(g)+CO2(g) ---> XCO3(s)
(Delta)H= ?
Answers
Answered by
Anonymous
Flip the equation around to make the second equation a negative-- so -707.7-381.9 will give you the answer
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