of ethanol () is burned and heats of water by . Taking , what is the enthalpy of combustion found by this experiment?

Answer and explanation

Correct answer: C.

  1. Step 1: J kJ.
  2. Step 2: Moles of ethanol mol.
  3. Step 3: .
Answer
.
Why not the others: : divides by mol instead of mol. : uses mol instead of mol. : gets the sign wrong for a combustion.

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