Q356
Enthalpy of formation of NH3 is -46 kJ/kg mole. The enthalpy change for the gaseous reaction, 2NH3 → N2 + 3H2, is equal to __________ kJ/kg. mole.
A.
46
B.
92
AnswerC.
-23
D.
-92
Answer: Option B
Solution
Answer: Option B
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