Description

Ethanol (𝐶2𝐻5𝑂𝐻) is currently blended with

gasoline as an automobile fuel.

Part A

Write a balanced equation for the combustion of liquid ethanol in air.

Express your answer as a chemical equation. Identify all of the phases in your answer.

7 A chemical reaction does not occur for this question.

Part B

Calculate the standard enthalpy change for the reaction, assuming 𝐻2𝑂(𝑔) as a product.

Express your answer using five significant figures.

𝛥𝐻𝑓0=1,𝑘𝐽𝑚𝑜𝑙

Part C

Calculate the heat produced per liter of ethanol by combustion of ethanol under constant pressure. Ethanol has a density of 0.789𝑔𝑚𝐿.

Express your answer using three significant figures.

𝑘𝐽𝐿

Part D

Calculate the mass of 𝐶𝑂2 produced per 𝑘𝐽 of heat emitted.

Express your answer using five significant figures.

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