13.1. Hydrogen sulfide (H₂S) boils at -61 H,Se at -42°C, and H₂Te at -2°C. Based on this trend, at what temperature would one expect H₂O to boil? Why does H₂O boil at a much higher
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- ∆Sfus for Hg at its melting point (-39ºC) and 1 atm is (∆Hfus of Hg = 23 kJ/mol) a. -0.59 j/k b. -1.7 j/k c. 98 j/k d. -590 j/kWhat is Δq for the vaporization of 50.0 g of Compound A (76.03 g/mol; ΔHvap is 31.6 kJ/mol)?match the following 0.110 m CoI2 A. Highest boiling point 0.180 m NaCH3COO B. Second highest boiling point 0.100 m CuI2 C. Third highest boiling point 0.390 m Sucrose (nonelectrolyte) D. Lowest boiling point
- A 10.0 g sample of liquid water is sealed in a 1515 mL flask and allowed to come to equilibrium with its vapor at 27 °C. What is the mass of H2O (g) present when equilibrium is established?Calculate the melting point of benzoic acid (C6H5CO2H), given the following data: Δ Hfusion = 17.3 kJ/mol and Δ Sfusion = 43.8 J/(mol K).If 100.0 g of ice at -10.0°C is placed in 200. g of water at 90.0°C in an insulated container, what will be the temperature of the system when equilibrium is established? (Sp. heat of H2O(s) = 2.09 J/g-oC, Sp. heat of H2O(l) = 4.18 J/g-°C, heat of fus. of H2O(s) = 333 J/g. 31.8 oC 65 oC 27 oC 20 oC 72 oC
- For propane, the ∆H° of vaporization is 22.9 kJ/mol and the ∆S° of vaporization is 99.0 J/mol・K. At 1.00 atm and 206.0 K, what is the ∆G° of vaporization for propane, in kJ/mol?Calculate the boiling point for a substance with ΔHoliquid = 49.1 kJ/mole , Soliquid = 173.4 J/(mole⋅K), ΔHogas = 82.927 kJ/mole and Sogas = 269.2 J/(mole⋅K). Group of answer choices 0.351 oC -273 oC -270. oC 80.1 oC 2.83 oC 353 oCThe equilibrium vapor pressure of water at 70.0°C is 233.7 torr. If 0.190 g of H2O is collected in a closed 325.0-mL flask maintained at 70.0°C, which phase(s) of water will be present in the flask? Assume the density of liquid water is 1.00 g/mL.
- If 100.0 g of ice at -10.0°C is placed in 200. g of water at 90.0°C in an insulated container, what will be the temperature of the system when equilibrium is established? (Sp. heat of H2O(s) = 2.09 J/g-oC, Sp. heat of H2O(l) = 4.18 J/g-°C, heat of fus. of H2O(s) = 333 J/g.Based on the thermodynamic properties provided for water, determine the energy change when the temperature of 0.450 kg of water decreased from 101 °C to 51.5 °C. What is the kJ? _____ kJ Property Value Units Melting point 0 °C Boiling point 100.0 °C ΔHfus 6.01 kJ/mol ΔHvap 40.67 kJ/mol cp (s) 37.1 J/mol · °C cp (l) 75.3 J/mol · °C cp (g) 33.6 J/mol · °CYou are high up in the mountains and boil water to makesome tea. However, when you drink your tea, it is not as hotas it should be. You try again and again, but the water is justnot hot enough to make a hot cup of tea. Which is the bestexplanation for this result? (a) High in the mountains, it isprobably very dry, and so the water is rapidly evaporatingfrom your cup and cooling it. (b) High in the mountains,it is probably very windy, and so the water is rapidly evaporatingfrom your cup and cooling it. (c) High in the mountains,the air pressure is significantly less than 1 atm, sothe boiling point of water is much lower than at sea level.(d) High in the mountains, the air pressure is significantlyless than 1 atm, so the boiling point of water is much higherthan at sea level.