Chemistry · Thermodynamics
One mole of C2H5OH(l) was completely burnt in oxygen to form CO2(g) and H2O(l). If the standard enthalpy of formation (ΔfH°) of C2H5OH(l), CO2(g), and H2O(l) is x, y, and z kJ mol-1 respectively, what is the standard enthalpy of reaction (ΔrH°) in kJ mol-1 for this combustion process?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12y + 3z - x✓
- 2x - 2y - 3z
- 32y - 3z + x
- 42y + 3z + x
Correct answer
2y + 3z - x
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