ch. 13 Fuel

13.1 CW / HW

a. enthalpy & using ΔH(formation) [20 points]

i. ck12: thermo [6 points]

ii. questions [8 points]

a) relate the change in the enthalpy of a reaction, ΔH, and the amount of heat in a reaction

b) what is the meaning, where ΔH > 0 or ΔH < 0 ? "name" of such a reaction ?

c) what is ΔH(formation) ?

d) relate ΔH(formation) of the chemicals in a reaction and ΔH

iii. ap chem textbook; ch. 5; # 55, 57ad [6 points]

b. application of prior content. print pp. 3 -5 for dHf. [5 points]

i. using ΔH(formation), solve for ΔH in the reaction: 5 g propane + excess O2 --> CO2 + H2O

 

13.2 enthalpy lab