Liquid nitrogen has a molar enthalpy of vaporization of 5.57 kJ mol⁻¹ at 77 K

CHEMISTRY · Subjective · A Level · Chemistry · Energetics · Energetics

Problem

Liquid nitrogen has a molar enthalpy of vaporization of 5.57 kJ mol⁻¹ at 77 K. If 2.23 kJ of energy is absorbed at 77 K, how many N₂ molecules undergo vaporization?

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