Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Hard-Class 11
Calculate the enthalpy change (ΔH) for the reaction: C(graphite, s) + 1/2 O2(g) + 1/2 O2(g) → CO2(g), given that the enthalpy change for the reaction C(graphite, s) + O2(g) → CO2(g) is -393.5 kJ/mol.
A
-393.5 kJ/mol
B
-196.75 kJ/mol
C
-787.0 kJ/mol
D
0 kJ/mol
Correct Answer
Option A
Detailed Explanation
The enthalpy change for the reaction involving C(graphite, s) and O2(g) to form CO2(g) is given directly as -393.5 kJ/mol. The stoichiometry of the reaction does not change the enthalpy value provided.
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