Post Utme Al Hikmah University 2025 Chemistry Question 23
Practice objective / multiple choice question 23 from the 2025 Post Utme Al Hikmah University Chemistry examination.
The s\tandard enthalpy of formation of ammonia (NH3) is -45.9 kJ/mol. The s\tandard enthalpy of formation of hydrogen (H2) is 0 kJ/mol. The s\tandard enthalpy of formation of nitrogen (N2) is 0 kJ/mol. Calculate the s\tandard enthalpy of formation of hydrogen cyanide (HCN) u\sing the following equation: N2 + 3H2 → 2NH3, followed by 2NH3 + HCN → 2NH4CN.
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This is Post Utme Al Hikmah University 2025 Chemistry Question 23. It is one of the objective questions from the 2025 Post Utme Al Hikmah University Chemistry examination.
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