B
Brainer23
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1. two students are debating whether methanol, CH3OH(l) or propanol C3H7OH(l) is the better fuel. both methanol and propanol are liquids at room temperature. one student states that methanol produces more heat than an equal mass of propanol. design the procedure for an experiment that you might conduct in order to prove or disprove this student's statement. include a list of materials you might use.
2. 12.0g of ethyne, C2H2(g) undergoes complete combustion. the heat from the reaction causes the temperature of a 550 g calorimeter (c= 0.385 J/(g. degrees celcius)) containing 750 g of water (c= 4.18 J/(g. degrees celcius)) to increase from 23.2 degrees celcius to 38.2 degrees celcius.
a) write a chemical equation for the complete combustion of ethyne.
b) calculate teh amount of heat in kilojoules per gram (kJ/g) produced by the reaction
c) write a thermochemical equation for the reaction expressing the heat term in kJ/ mol C2H2.
2. 12.0g of ethyne, C2H2(g) undergoes complete combustion. the heat from the reaction causes the temperature of a 550 g calorimeter (c= 0.385 J/(g. degrees celcius)) containing 750 g of water (c= 4.18 J/(g. degrees celcius)) to increase from 23.2 degrees celcius to 38.2 degrees celcius.
a) write a chemical equation for the complete combustion of ethyne.
b) calculate teh amount of heat in kilojoules per gram (kJ/g) produced by the reaction
c) write a thermochemical equation for the reaction expressing the heat term in kJ/ mol C2H2.