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What is the standard enthalpy change for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) if ΔHf°(NH3) = -45.9 kJ/mol?

Practice Questions

1 question
Q1
What is the standard enthalpy change for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) if ΔHf°(NH3) = -45.9 kJ/mol?
  1. -91.8 kJ
  2. 0 kJ
  3. 45.9 kJ
  4. 91.8 kJ

Questions & Step-by-step Solutions

1 item
Q
Q: What is the standard enthalpy change for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) if ΔHf°(NH3) = -45.9 kJ/mol?
Solution: ΔH = 2 * ΔHf°(NH3) = 2 * (-45.9) = -91.8 kJ
Steps: 0

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