Chemistry-(general)
NEET Chemistry (general) MCQ Question
Type: MCQ-fact-Medium-Class 11
What is the enthalpy change (∆rH°) for the reaction forming NO(g) from its elements under standard conditions?
A
90 kJ mol–1
B
–74 kJ mol–1
C
0 kJ mol–1
D
–90 kJ mol–1
Correct Answer
Option A
Detailed Explanation
The enthalpy change (∆rH°) for the formation of NO(g) from N2(g) and O2(g) is given as +90 kJ mol–1, indicating that it is an endothermic reaction.
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