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What is the standard enthalpy change for the reaction: 2H2(g) + O2(g) → 2H2O(g) if the enthalpy of formation of H2O(g) is -241.8 kJ/mol?

Practice Questions

1 question
Q1
What is the standard enthalpy change for the reaction: 2H2(g) + O2(g) → 2H2O(g) if the enthalpy of formation of H2O(g) is -241.8 kJ/mol?
  1. -483.6 kJ
  2. 241.8 kJ
  3. 0 kJ
  4. 483.6 kJ

Questions & Step-by-step Solutions

1 item
Q
Q: What is the standard enthalpy change for the reaction: 2H2(g) + O2(g) → 2H2O(g) if the enthalpy of formation of H2O(g) is -241.8 kJ/mol?
Solution: The standard enthalpy change is 2 * (-241.8 kJ) = -483.6 kJ for the formation of 2 moles of H2O(g).
Steps: 0

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