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CP Chemistry Final

Final Review Chapters 13-15

QuestionAnswer
Why is a gas easier to compress than a liquid or solid? The volume of a gas's particles is small compared to the volume of the gas.
Why does the pressure inside a container of gas increase if more gas is added to the container? There is an increase in the number of collisions between particles and the walls of the container.
If the volume of a container is reduced, what will happen to the pressure inside the container? Pressure will increase.
As the temperature of the gas in a balloon decreases, which of the following occurs? The average kinetic energy of the gas decreases.
What happens to the pressure of a gas inside a rigid container if the temperature of the gas decreases? Pressure decreases.
How does gas pressure change when volume is doubled and temperature remains constant? It reduces by one half.
If a plumber pushes down on a piston reducing the volume, what happens to the pressure at a constant temperature? Pressure increases.
If a balloon is heated, what happens to the colume of the air in the balloon if pressure remains constant? Volume increases.
What gas law relates volume and pressure when temperature remains constant. Boyle's Law. (Know the formula.)
What gas law relates volume and temperature when pressure remains constant? Charles' Law. (Know the formula.)
What does the ideal gas law allow a scientist to calculate that other gas laws do not? number of moles
What is the ideal gas law? PV=nRT
What is Dalton's Law of Partial Pressure? P total = P1 + P2 + P3 .....
What happens to the average kinetic energy of the particles in a sample of matter as the temperature of the sample is increased? Average Kinetic energy increases.
If two cubes of different metals have the same temperature, how do their average kinetic energies compare? The avergage kinetic energies would be the same.
Name 2 properties of solids? dense and difficult to compress
Which phase describes the direct change of a substance from solid to gas? sublimation
The state in which a substance exists at room temperature depends on the _________. the strength of the attractive forces between the particles
What is the order of the phases of matter from most organized particles to least organized particles? solid, liquid gas
What happens to the temperature of a substance during phase change? remains constant
In general, which of the following occurs as temperature increases? Solubility of salts increases
Which choice describes a concentrated solution? Concentrated solutions have large amount of solution.
What is the molarity of a solution that contains 10 moles of solute in 5 liters of solution? 2M
How is molarity expressed? moles of solute/ 1 liter of solution
What does not change when a solution is diluted by the addition of a solvent? number of moles of solute
Which choice best described the maximum amount of solute that will dissolve in a specific solvent under given conditions? saturated
What is the solute? the substance being dissolved
Created by: ssuriano