Vocabulary
Define diffusion.
The movement of one material through another.
What is in the middle of EARTH.
R
What is the type of volume a Gas has ?
A Indefinite volume.
What are the 4 gas variables?
Pressure(P), volume(V), Temperature(T), Mole(M)
A device for measuring atmospheric pressure
Barometer
Define Absolute zero.
Zero on the Kelvin scale.
What is the center of an atom called and what is it made up of?
Nucleus, neutrons and protons.
Describe the shape of a Liquid.
Indefinite, Assumes the shape of its container.
What is the si unit for Temperature?
Kelvin(K)
K= C + 273
What is another device that can be used to measure pressure?
Open tube manometer.
Define Mole.
A SI unit used to measure the amount of a substance
What is the most dangerous type of radiation to living matter?
Gamma rays.
What is the particle size of a solid?
Particles tightly packed.
What do the letters STP represent?
Standard Temperature and Pressure.
What is the difference between a closed tube manometer and a regular manometer?
The end of a closed tube manometer is sealed and contains a vacuum.
Define Coefficient.
The number written in front of a reactant or product in a chemical equation.
61% of all the atoms in the human body are _______ atoms.
Hydrogen atoms.
What is the rate of diffusion/effusion of a liquid?
Slow rate of diffusion.
What is the SI unit for Pressure?
Pascal(Pa) & (kPa).
What element does the barometer have use of?
Mercury.
Define Charle’s law.
A law stating that the volume of an ideal gas at constant pressure is directly proportional to the absolute temperature.
What two elements are liquid at room temperature?
Mercury (Hg) and Bromine (Br).
What is the special property of a solid?
Can be classified as crystalline or amorphous solids.
What is the non-SI Unit for Moles?
N/A
Who are the inventors of the barometer and manometer?
Evangelista Torricelli - Barometer
Otto von Guericke - Manometer