 
			 
			MCQOPTIONS
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				| 1. | With respect to enthalpy of combustion which of the following is correct? | 
| A. | ∆H<sub>rxn</sub> = Σ∆H<sub>f</sub> (product) – Σ∆H<sub>f</sub> (reactant) | 
| B. | ∆H<sub>rxn</sub> = Σ∆H<sub>f</sub> (reactant) – Σ∆H<sub>f</sub> (product) | 
| C. | ∆H<sub>rxn</sub> = Σ∆H<sub>f</sub> (product) + Σ∆H<sub>f</sub> (reactant) | 
| D. | ∆H<sub>rxn</sub> = 2 Σ∆H<sub>f</sub> (product) – Σ∆H<sub>f</sub> (reactant) | 
| Answer» B. ‚Äö√Ñ√∂‚àö‚Ć‚àö√∫H<sub>rxn</sub> = ‚âà√≠¬¨¬£‚Äö√Ñ√∂‚àö‚Ć‚àö√∫H<sub>f</sub> (reactant) ‚Äö√Ñ√∂‚àö√ë‚àö¬® ‚âà√≠¬¨¬£‚Äö√Ñ√∂‚àö‚Ć‚àö√∫H<sub>f</sub> (product) | |