Chemistry EOC Review #4

Front

What is the total pressure of a gas mixture?

Back

The total pressure of a gas mixture is the sum of the partial pressures of each individual gas in the mixture.

Front

How do you calculate the partial pressure of a gas in a mixture?

Back

The partial pressure of a gas can be calculated using Dalton's Law: P_total = P_gas1 + P_gas2 + ... + P_gasn.

Front

What is the saturation point of a solute?

Back

The saturation point is the maximum amount of solute that can dissolve in a solvent at a given temperature.

Front

What factors affect the solubility of a solute?

Back

Temperature, pressure, and the nature of the solute and solvent affect solubility.

Front

What is the relationship between moles, volume, pressure, and temperature of a gas?

Back

The relationship is described by the Ideal Gas Law: PV = nRT, where P is pressure, V is volume, n is number of moles, R is the gas constant, and T is temperature.

Front

What are endothermic phase changes?

Back

Endothermic phase changes are processes that absorb heat, such as melting, boiling, evaporation, and sublimation.

Front

What happens to a reaction at equilibrium if the pressure is increased?

Back

According to Le Chatelier's Principle, the reaction will shift towards the side with fewer moles of gas to counteract the change.

Front

What is Dalton's Law of Partial Pressures?

Back

Dalton's Law states that in a mixture of non-reacting gases, the total pressure is equal to the sum of the partial pressures of each gas.

Front

What is the significance of temperature in gas behavior?

Back

Temperature affects the kinetic energy of gas molecules, influencing pressure and volume according to gas laws.

Front

What is the definition of an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings.