Question 7 1 pts Use the following drawing of a gaseous solute in equilibrium with a solution to help answer the questio

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Question 7 1 Pts Use The Following Drawing Of A Gaseous Solute In Equilibrium With A Solution To Help Answer The Questio 1 (41.62 KiB) Viewed 64 times

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Question 7 1 pts Use the following drawing of a gaseous solute in equilibrium with a solution to help answer the question below. (Piston) o ooooo o o Ol o too Which of the following statements are true when the piston is pushed in (downward)? This will cause the pressure of the gas to decrease and the concentration of the dissolved gas to go down. This will cause the volume of the gas to decrease and the concentration of the dissolved gas to go down none of these This will cause the pressure of the gas to increase and the concentration of the dissolved gas to go down This will cause the pressure of the gas to increase and the concentration of the dissolved gas to go up.

Question 8 1 pts What is the freezing point of an aqueous 1.22 molality KCI solution? (K1 - 1.86°C/m) 4.54C 4.54°C 2.27°C none of these 0 -2.27°C D Question 9 1 pts Which of the following statements about gas solubility in liquids is false? Most gases that are soluble in water are polar or react with water. Gas solubility decreases with increasing temperature Gases are more soluble under high pressure than under low pressure. O A carbonated beverage will go flat more slowly in the refrigerator none of these SO TE $ 96 5 6 7 8 R Т. Y

D Question 10 1 pts Physical properties that depend on the but not the amount of solvent are called colligative properties of solute particles in a given number kind polarity number kind number none of these number:polarity D Question 11 1 pts Which statement is incorrect? O none of these O kinetic energy is the energy of motion. The Law of Conservation of Energy is another statement of the First Law of Thermodynamics. Energy is the capacity to do work or to transfer heat. A process that absorbs energy from its surroundings is called exothermic 80 P 58 4 5 6 7 8 R T Y U

1 pts How much heat is required to raise the temperature of a 6,69-8 sample of Iron (specific heat 0.450 J/g C) from 25.0°C to 79.8°C? 815) 165) 0 367) none of these 2.95 Question 13 1 pts Consider the reaction; 2C1F3() + 2NH3(8) ► Nz() + 6HF(g) + + Cl (s) When calculating the AH rm, why is the AH, for N2 not important? O none of these nitrogen is in its standard elemental state and Air is equal to zero for elements in their standard state O products are not included when calculating AH®rxn. nitrogen is in its elemental state and does not contribute to the reaction itself. Two of the statements explain why N2 is not important for calculating AHørxn. ਹੈ : < 0 5 6 7 8 9 R T Y U