A burner uses Pittsburgh coal analyzing 14.1% ash, 2.1%N and 4.3% S. Excess air is supplied dry at 22 'C and 1 atm. The stack gases at 285°C,765 mm Hg analyzes 9.65% CO2, 1.16% CO, 0.24% SO2, 0.58% H2 and 9.16% O2. Calculate: a) Equivalence Ratio sample (0.606)  b) Complete ultimate analysis (72.63%C, 4.11%H, 2.76%0)  c) m' air/kg coal (13.56)  d)m' SG/kg coal (26.25)

Q3(a) A stream of benzene vapor at 580 °C and 1 atm is cooled and converted to a liquid at 25 °C and latm in a continuous condenser. (i) (ii) Illustrate a completely process path for the above process. Calculate the total enthalpy change for this process.

10.73 The normal melting point of benzene, C,H, is 5.5°C. For process of melting, what is the sign of each of the fol- lowing? (a) AH°, (b) AS°, (c) AG° at 5.5°C, (d) AG° at 0.0°C, (e) AG° at 25.0°C the

A CHM student completing the calorimetry experiment mixes 20.0 mL of 1.10 M HCl (aq) with 20.0 mL of 1.05 M NaOH (aq), and observes the temperature increase of 6.611∘∘C.  Assume that the density of each solution is 1.02 g/mL, and the specific heat for the resulting solution is 4.02 J/g∙℃.  Calculate the change in enthalpy for this reaction (ΔHrxn) in kJ/mol H2O.   Use the correct sign (+ or -) and significant figures.