Question

On a 7 day wilderness expedition you'll need to heat 5.0 kg of water to the boiling point each day. The air temperature will average 25 °C. You have available canisters of compressed propane C H fuel, which you'll burn to heat the water. Each canister has 100. g of propane in it. What is the minimum number of fuel canisters you must bring? The standard heat of formation of propane at 25 °C is -103.85 kJ/mol. You'll probably find other helpful data in the ALEKS Data resource. canisters x 6 ?

Answer 1

100 Puista No. og days = 7 #mt of water = 5kg = 5000g T = 25°C To= 100°c AT: 75°C Euro 4.194 TigogoCHT ons heat reg to raise the tomt. 2 = mw xtar XoT ( = 5000I X 2.104 J/g.o0 x 75°C = 1569000 J 1569KG OH = - 103.85 kJ/mole no. of mole of propan zeg. to raise temp. = 1565000 a 1569 mole 5 103.85 - 15ilo o mole Amount of propane needed = 15.108 x 44.1 g = 666.289 no. of propane can need ed= 566.28 5.56 x 7 cans & 7tang And =