Question

help on B and F.

1. Propane, CzHs, burns in air. The reaction is exothermic and the enthalpy change is equal to -2044 kJ/mol. a. Give the correct balanced chemical equation to represent the combustion of propane. CH₂ 191 +50201 320 (s) + 4H₂O(g) b. Fill in the blanks using information from the balanced thermochemical equation. mol rxn - mol CH3 - _ mol O2 = _ mol H20 - _ mol CO2- c. Circle your choice to complete the sentence. During this reaction, energy flows... from the system to surroundings from surroundings to system no flow d. If you were holding the reaction vessel what would it feel like? Circle your answer. (hot cold no change in temperature e. Which is at lower potential energy in this reaction? Circle your choice. reactants products everything is equal f. How many grams of O2 must react to produce 736 kJ? Solve this problem using factor label and clearly show how the units cancel.

Answer 1

@ C 3 Hg 150 300 + 4H20 (6) I mol of cha 5 mol of a 4 mol of tho 3 mol of CO₂ -2o44 KJ © ferom sytem to surrounding becuse it is exothermic enaction 1.e heat exleased @ hot e pewduct has lower potential energy because evaction in exothermic