The enthalpy of combustion of ethanol is determined by heating a known mass of tap water in a glass beaker with a flame of burning ethanol.
The molar mass of a gas, determined experimentally, is 32 g mol−1.
The enthalpy of combustion of ethanol is determined by heating a known mass of tap water in a glass beaker with a flame of burning ethanol. Which will lead to the greatest error in the final result?
Assuming the density of tap water is 1.0 g cm−3
Assuming all the energy from the combustion will heat the water
Assuming the specific heat capacity of the tap water is 4.18 J g−1 K−1
Assuming the specific heat capacity of the beaker is negligible