Spring 2006 CH302 Worksheet 1a: The thermodynamics of chemical and physical processes Chemical Reaction ΔH (kJ) BE (kJ) Δnga w (kJ) Δnsystem ΤΔS (kJ) ΔG (kJ) CH4g + 2O2g CO2g + 2H2Og sign Explain: Combustion reaction, would predict large heat and spontaneous reaction. Δn = 0 means no work, small entropy change. calc. 2H2g + O2g 2H2Og sign Explain: calc. 2H2Og 2H2g + O2g sign Explain: calc. C2H5OHl + 3O2g 2CO2g + 3H2Og sign Explain: calc. C2H5OHl + 3O2g 2CO2g + 3H2Ol sign Explain: calc. C3H8g + 5O2g 3CO2g + 4H2Og sign Explain: calc. 2H2O2l 2H2Ol + O2 g sign Explain: calc. CCl4l Cs + 2Cl2g sign Explain: calc. Ba(OH)2(H2O)8s + 2NH4NO3 Ba(NO3)2s + 2NH3g + 10H2Ol sign Explain: calc.2O3g 3O2g sign Explain: calc. Chemical Reaction ΔH (kJ) BE (kJ) Δnga w (kJ) Δnsystem ΤΔS (kJ) ΔG (kJ) CO2g CO2s sign Explain: calc. NH3g + HClg NH4Cls sign Explain: calc. H2Os H2Ol sign Explain: calc. Reaction: sign Explain: calc. sign Explain: calc. Reaction: sign Explain: calc. Reaction: sign Explain: calc. Reaction: sign Explain: calc.Reaction: sign Explain: calc. Reaction: sign Explain:
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