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What is the standard enthalpy change for the reaction 2H2 + O2 → 2H2O if the enthalpy of formation of H2O is -285.8 kJ/mol?

Practice Questions

1 question
Q1
What is the standard enthalpy change for the reaction 2H2 + O2 → 2H2O if the enthalpy of formation of H2O is -285.8 kJ/mol?
  1. -571.6 kJ
  2. -285.8 kJ
  3. 0 kJ
  4. 285.8 kJ

Questions & Step-by-step Solutions

1 item
Q
Q: What is the standard enthalpy change for the reaction 2H2 + O2 → 2H2O if the enthalpy of formation of H2O is -285.8 kJ/mol?
Solution: ΔH = 2 * (-285.8 kJ) = -571.6 kJ
Steps: 0

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