A 356 G Sample of Ethanol (C₂H₅OH)is Burned in a Bomb

A 35.6 g sample of ethanol (C₂H₅OH) is burned in a bomb calorimeter,according to the following reaction.If the temperature rose from 35.0 to 76.0°C and the heat capacity of the calorimeter is 23.3 kJ/°C,what is the value of ΔH°_rxn? The molar mass of ethanol is 46.07 g/mol.
C₂H₅OH(l) + 3 O₂(g) → 2 CO₂(g) + 3 H₂O(g) ΔH°_rxn = ?

A) -1.24 × 10³ kJ/mol
B) +1.24 × 10³ kJ/mol
C) -8.09 × 10³ kJ/mol
D) -9.55 × 10³ kJ/mol
E) +9.55 × 10³ kJ/mol

Correct Answer:

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Access For Free