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# Unit 5

### Science

How many states does Matter exist in ? 4
List all the states that Matter exists ? Solid, Liquid, Gas, and Plasma
Ionic Compounds exist as ____________. Solids
Do gases have a definite shape or definite volume ? No
Gas particles are ______ held close together. Not
True or False ? Warmer molecules tend to move faster. Colder molecules move slower. True
Define Pressure Force of collision and the number of collisions
Define A Pascal Pressure of one newton per square meter
Does the Average Speed of Gas Particles depend on 1 or more gases ? 1
List all the gases that the Average Speed of Gas Particles depend on temperature and the mass
Define Kinetic Energy The energy of its motion (of an object)
True or False ? It would be impossible to find the Average Kinetic Energy of all the particles True
Is it possible or impossible to find the Average Kinetic Energy of all the particles ? Impossible
In order to find the Kinetic Energy (of an object/particles) we use _________ (measure) to find it . Temperature
When there is a decrease in the temperature, the particles are moving __________ __________. More Slowly
While there is in increase in temperature, the particles are moving _________. Faster
Define Absolute Zero The temperature at which all molecular motion should cease and is also the zero point of the Kelvin Scale
Absolute Zero is represented by .... -273*C
Equation used for the Kelvin Scale K=*C+273
Define Heat Amount of energy transferred between the two objects
Boyle's Law states: & Example - If Gas remains constant, the pressure exerted by a gas varies inversely as the volume. Squeezing a balloon makes the volume smaller and the pressure increases.
What is the equation for Boyle's Law ? P V = P V 1 1 2 2 (Pressure 1)(Volume 1) = (Pressure 2)(Volume 2)
Gay-Lussac's Law states: Example - The pressure decreases as the temperature. Leaving a basketball outside overnight in the cold, the next day ir is flat (lost temperature due to low temperature) OR a tire blowing out on a hot day because the particles move faster and increase the tire
Charles Law states: & Example - The volume of a quantity of gas, held at a constant pressure, varies directly with the temperature. Parader balloons need to be partially filled with air if it is a cold morning, but a warm afternoon.
What is Diffusion ? Random scattering of gas molecules going from an area of high concentration to an area of low concentration and is also the movement of gas through a small opening.
What is Equilibrium ? Equal distribution
Created by: S732606JGRC