For the Reaction H₂(g)+ 1/2 O₂(g)→ H₂O(g)Δ_rH° = -241

question 50

Multiple Choice

For the reaction H₂(g) + 1/2 O₂(g) → H₂O(g) Δ_rH° = -241.8 kJ/mol,
What quantity of heat,in kJ,evolved when a 72.0 g mixture containing equal parts of H₂ and O₂,by mass,is burned?

• A)8630 kJ
• B)4860 kJ
• C)1088 kJ
• D)272 kJ
• E)544 kJ

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