Physics-Laws of Thermodynamics
NEET Physics Laws of Thermodynamics MCQ Question
Type: MCQ-numerical-Hard-Class 11
Calculate the change in enthalpy when combining the formation reactions of CO(g) and H2O(l) from graphite and H2(g) respectively. Given: ΔfH°(CO(g)) = -2361 kJ/mol and ΔfH°(H2O(l)) = -857.49 kJ/mol.
A
-3218.49 kJ/mol
B
-3267.0 kJ/mol
C
-48.51 kJ/mol
D
-3218.49 kJ
Correct Answer
Option A
Detailed Explanation
The change in enthalpy when combining the formation reactions is the sum of ΔfH° of CO(g) and H2O(l), which equals -3218.49 kJ/mol.
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