Chemistry Gas Laws

• In words explain Boyles Law-

  Boyles law states that for a given mass of gas at constant temperature, the volume of the gas varies inversely with pressure.
• Particle Diagram of Boyles Law-

  Container of a gas with particles in it. A pressure arrow increasing and volume arrow decreasing. Curved graph.
• Boyles law in a mathematical statement-

  (P1)(V1)=(P2)(V2)
• What remains constant in Boyles law-

  Temperature
• What are the 4 experimental variables that affect gases-

  Temperature

  Pressure

  Volume

  Amount of gas
• What are the units that measure pressure-

  101.3KPa

  760mmHg and Torre

  1atm
• atmospheric pressure versus gas pressure-

  Gas pressure is caused by the force exerted by gas molecules colliding with the surfaces of objects
• STP versus SATP-

  why do we have both?

  STP is 0°c and 101.3KPa those are not standard laboratory settings but were the standard conditions before.

  SATP is the new standard and has better settings for laboratories 25°c and 100KPa.
• What is Daltons law of partial pressure-

  The total pressure in a container is the sum of the partial pressure of the gases in the container. Each gas exerts the same pressure it would if it alone were present at the same temperature.
• Why is gas often bubbled through water-

  Gas is often bubbled through water because it is the easiest way to contain the gas in a closed space. It’s also a way to find gas pressure and vapour pressur.
• How is Daltons law related to this unit-

  Because most labs are done with gases being bubbled through water so you have to account for the vapour pressur.
• What is the importance of dry gas-

  The volume of a gas collected over water must be corrected for water Vapor pressure. Pgas is equal to ptotal subtract pwate.
• What does the Kelvin scale measure-

  Temperature
• What is the kelvin relationship with Celsius-

  -273°c is equal to 0 on the kelvin scale
• What is absolute zero-

  -273°c is the lowest temperature at which an ideal gas can have a volume of zero and not liquify
• Why use kelvin and not celsius-

  Kelvin does not reach the negatives at all making it easier to do calculations
• Charles law in words

  Charles law states that the volume of a fixed mass of gas is directly proportioned to its kelvin temperature if the pressure is kept constant
• Charles law particle diagram

  Container with particles in it. Temperature arrow increases volume arrow increasing. Pressure is constant. Straight line graph.
• Mathematical statement of Charles law

  V1/T1=V2/T2
• What remains constant in Charles law

  Pressure
• Gay-lussacs law in words

  Gay-lussacs law states that the pressure of a gas is directly proportional to the kelvin temperature if the volume remains constant
• Gay-lussacs law particle diagram

  Equal leveled containers with particles inside. Temperature arrow goes down pressure arrow goes down. volume is constant. Straight line graph.
• Mathematica statement of Gay-lussacs law

  P1/T1=P2/T2
• What remains constant in gay-lussacs law

  Volume