Use the Table of Enthalpies of Formations, to determine the heat of reaction (ΔHrxn) for the combustion of benzene [C6H6] 2 C6H6(l) + 15 O2(g) à 12 CO2(g) + 6 H2O(l) ΔH°rxn = ?

For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.