Question:medium

The enthalpy of formation of hydrogen chloride (HCl) is \( -92.3 \, \text{kJ/mol} \). If 2 moles of HCl are formed from hydrogen and chlorine gas, calculate the total heat released.

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The enthalpy of formation is always given for the formation of 1 mole of a substance. When more than 1 mole is formed, multiply the enthalpy of formation by the number of moles.
Updated On: Nov 26, 2025
  • \( -184.6 \, \text{kJ} \)
  • \( -92.3 \, \text{kJ} \)
  • \( 92.3 \, \text{kJ} \)
  • \( 184.6 \, \text{kJ} \)