Units 9-11: Gases as a Form of Matter Flashcards
True or False: The greater the area, the greater the pressure. The smaller the area, the lower the pressure.
False. Ya stupid binch, if you said true. Oml, what you thinking? It’s called compression, ya dipshit.
Define Atmospheric Pressure. What is it meaured in? What is the average atmospheric pressure at sea level?
The force per unit area on an object exerted by air. Atmospheric pressure is measured in kPa, and at sea level the average is 101kPa.
What is Standard Temperature and Pressure (STP)?
The standard temperature and pressure is 0°C (or 273K) and 1atm (101kPa).
What is Standard Ambient Temperature and Pressure (SATP)?
25°C (or 298K) and 100kPa.
What is Boyle’s Law?
Provided that the temperature and chemical amount of gas remain constant, as the pressure on a gas increases, the volume of the gas decreases proportionally. The formula for Boyle’s Law is written as P1V1=P2V2.
What is Charles’ Law?
Provided that the pressure and chemicak amount of gas remain constant, as the temperature of a gas increases, the volume increases proportionally. The formular for Charles’ Law is V1/T1=V2/T2.
What is Combined Gas Law?
The product of the pressure and volume of a gas sample is proportional to its absolute temperature (kelvin temperature). The combined gas law is a combination of Boyle’s Law and Charles’ Law. The formula for Combined Gas Law is P1V1/T1=P2V2/T2.
What is the Law of Combining Volumes? What is it also known as?
The Law of Combining Volumes (a.k.a. Gay-Lussac’s Law of Combining Volumes) is when meaured at equal temperature and pressure, volumes of gaseous reactants and products of chemical reactions are always in simple ratios of whole numbers.
What is Avogardro’s Theory?
Equal volumes of gases at the same temperature and pressure contain equal number of molecules.
What four things does the Kinetic Molecular Theory explain?
· Why gases, unlike solids and liquids are compressible.
· The concept of gas pressure.
· Boyle’s Law
· Charles’ Law
What is Molar Volume?
The volume that one mole of a gas occupies at a specified temperature and pressure. The symbol for Molar Volume is Vm.
What is the Molar Volume at SATP?
24.8L/mol.
What is thr Molar Volume at STP?
22.4L/mol.
Define Ideal Gas.
A hypothetical gas that obeys all the gas laws perfectly under all conditions.
What are the 3 empericial properties of an ideal gas?
· V-T and P-T graphs are straight lines.
· Gas does not condense to a liquid when cooled.
· Has a formula written as PV=nRT
