Chapter 19, Problem 70a
Consider the evaporation of methanol at 25.0 °C : CH3OH(l) → CH3OH(g) a. Find ΔG° r at 25.0 °C.
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Determine ΔG° for the reaction: Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) Use the following reactions with known ΔG°rxn values: 2 Fe(s) + 3 2 O2(g) → Fe2O3(s) ΔG°rxn = -742.2 kJ CO( g) + 1 2 O2( g) → CO2( g) ΔG°rxn = -257.2 kJ
Consider the sublimation of iodine at 25.0 °C : I2(s) → I2( g) b. Find ΔG°rxn at 25.0 °C under the following nonstandard conditions: i. PI2 = 1.00 mmHg ii. PI2 = 0.100 mmHg
Consider the sublimation of iodine at 25.0 °C : I2(s) → I2( g) c. Explain why iodine spontaneously sublimes in open air at 25.0 °C
Consider the evaporation of methanol at 25.0 °C : CH3OH(l) → CH3OH(g) b. Find ΔG r at 25.0 °C under the following nonstandard conditions: i. PCH3OH = 150.0 mmHg ii. PCH3OH = 100.0 mmHg iii. PCH3OH = 10.0 mmHg
Consider the evaporation of methanol at 25.0 °C : CH3OH(l) → CH3OH(g) c. Explain why methanol spontaneously evaporates in open air at 25.0 °C
Consider the reaction: CO2( g) + CCl4( g) ⇌ 2 COCl2( g) Calculate ΔG for this reaction at 25 °C under the following conditions: i. PCO2 = 0.112 atm ii. PCCl4 = 0.174 atm iii. PCOCl2 = 0.744 atm