Combustion Etanol

Investigating Enthalpy Change by : Arif 11 Sci-2 target area To measure the changing energy of alchohol and spiritus into warming energy shot When m ethanol and ethanol are heated, the ethanol commit chemise more heat than methanol. This hypothesis is found on the currently provided statistics, which state that methanol will loosen close to 725 kJ of heat energy per mole and ethanol will release approximately 1,364 kJ of heat energy per mole. Variables Independent : Different liquified: Alchohol, and spiritus. Dependen : The amount of heat released when the liquid is burned, calculated in kJ. This open fire be measured using the equality ?H = mc?T. Control : Same initial temperature of piddle supply primarily burn (25 c), same exhaust weight of etna burner, path temperature, materials, procedure. Apparatus: Name Quantity Beaker Glass 2 bunsen burner burner 2 Alchohol 63,46 gr Spiritus 71 gr Wa ter 210 ml( each trial 70 ml) for audition 1( using alchohol), 210 ml (each trial 70 ml) for try out 2 (using spiritus) Termometre 2 Holder 2 Procedures: Put the beaker film over on the holder and put the bunsen burner below the holder. accept the empty bunsen burner with alchohol (63,46 gr) indeed measure the plentifulness of it. woof the empty beaker glass with water (70 ml) then measure the throne of it. Put the termometer into beaker glass that make full with water. Record the temperature of water (25c). Set the fire on from bunsen burner that filled with alchohol. allow the fire burn the water until the temperature of water bugger transfer 40 degree celcius). Off the fire and measure the mass of alchohol with bunsen burner. Calculate the etanol mass that burned which is: (bunsen burner mass + alchohol mass) in the lead burned - (bunsen burner mass + alchohol ma ss) after burned. Calculate how many hea! t kilojoule freed... If you want to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay