For which of the following reactions is delta H rxn equal to Delta H formation of the products? THE HEAT OF FORMATION IS DEFINED BY A REACTION THAT FORMS ONE MOLE OF PRODUCT. Thank you. please help
Formation Reactions v2 Part A The standard heat of formation, Î . is defined as the enthaly change for the formation of one mole of substance from its constituent elements in their standard states. Thus, elements n their standard states have Î1, Heat of formation values can be used to calculate the enthalpy change of any reaction For which of the following reactions s Î1 in equal to Î1 of the pro uctismou do not need to look up any vales to answer this question Check all that apply MasteringChemistry: HW6-Google Chrome- o Li(s) + (1)âLiF(s) Consider, for example, the reaction ì https://session.masteringchemistry.com/myct/itemView?mode-myAå½a H202(g)2(g)H20(g) H2 (g) + O2 (g)âH2O (g) 2NO(g)02(2NO2(E) ers with hest of formation values given by the following table: ANSWER 1 Substance kJ/mol NO(g) | 90.2 02Li(s),F2(g) )2LiF(s) 0 Li(s) F2 (g) âLiF(s) H2O2 (g)-,02 (g) + H2O(g) Submit Hints MyAnswers Give Up Review Part NO2(g) 332 Incorrect; One attempt remaining; Try Again Li(s) + '2(g)âLiF(s) Then the heat of formation for the overall reaction is Part B Î Inn Î (products) Î (reactants) [2(90.2)0] 2(33.2) The combustion of heptane, CH1s.occurs via the reaction Look again at the coefficients in the reactions. The heat of formation is defined by a reaction that forms one mole of product. 114 kJ/mol Calcuiste the molar enthalpy for the combustion of heptane. Use the hest of ANSWER 2 Li(s) F2 (1)â LiF(s) H2O2 (g)- O2(g) + H2O(g) H2 (g) 02 (g) âH2O(g) Express your answer to four significant figures and include the The acceptable margin of error for this question is 1%, so use all digit 2Li(s)+ Fa() 2LiF(s) Li(s)--P, (g)âLiF(s) Hints MyAnswers Give Up Review Part Correct Look again t the coefficients in the resctions. The heat of formation is defined by a resction that forms one mole of product. ntinue
