Gas Unit Review
Card Set Information
Gas Unit Review
gas pressure Kinetic Molecular Theory ideal real vapor
Review vocab and reference table H for NYS Regents Chemistry
What is the measure of average kinetic energy?
Why are gasses easily compressable?
Gas particles are very far apart
What is the SI unit to measure pressure?
What is standard pressure in kPa, atm and mm Hg?
101.3 kPa, 1.0 atm, 760 mm Hg
What 2 things does the KMT say that the particles of a gas do not have?
They have no volume and no forces of attraction
How is a real gas different from an ideal gas?
Real gas particles do have a volume and weak attractive forces
Under what conditions are real gases behavior most ideal?
High temperature and low pressure
A sample of which gas would be have most ideally?
because it is made up of smaller particles
As the temperature of a gas sample at constant pressure increases, the ___ increases
For a given volume of a gas, as the temperature increases, the pressure ____.
Show the correct numeric set up to solve:
A balloon at 25 C has a volume of 18.0 liters. If taken outside where the temperature is 3 C, what is the new volume?
18.0 x 298
Why must gas calculations always be done in Kelvin and not Celsius
There are no negatives or zero in Kelvin
As the temperature of a solution increases, the solubility of a gas _____
Which will be more "flat", an opened can of warm soda or cold soda?
As the pressure above a solution increases, the solubility of a gas _____
When carbon dioxide dissolves in water, what is formed in the solution?
carbonic acid ( or H
What term is defined as "when the vapor pressure of a substance is equal to the air pressure"?
One can get water to boil at a lower temperature if the ____________
Air pressure is lower
The higher the boiling point of a substance , the _____ the intermolecular forces
The process of molecules leaving the surface of a liquid is called ____.
The vapor pressure of a substance changes with _____ and not the _______
changes with temperature and not the amount