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1. |
Enthalpy of formation of NH‚ÇÉ is - 46 kJ/kg mole. The enthalpy change for the gaseous reaction, 2NH‚ÇÉ ‚Üí N‚ÇÇ + 3H‚ÇÇ, is equal to __________ kJ/kg. mole.# |
A. | 46 |
B. | 92 |
C. | -23 |
D. | -92 |
Answer» C. -23 | |