Particles are mostly arranged randomly, have limited movement from place to place
What this state of matter?
15
Fixed shape and volume, touching each other and in regular arrangement
What this state of matter?
15
The idea that molecules in gases are in constant movement is called?
kinethic theory of gases
15
What is pressure?
collisions between the gas molecules and the walls of the container?
15
what is the formula of general gases equation?
pv=nRT
15
calculate the volume by 0.5 mol of carbondioxide at pressure of 150 kPa and a temperature of 19 C ?
8,088 dm3
15
a flask of volume 5 dm3 contained 4 g of oxygen. calculate the pressure exerted by the gas at a temperature of 127 C
83,1
25
A flask volume of 2 dm3 was found to contain 5,28 of a gas. The pressure in the flask was 200 kpa and the temperature was 20 C. calculate the relative molecular mass of the gas?
32,2
15
What happens when we heat a solid?
energy transfer and particles vibrate more, forces attraction weaken and solid changes to liquid
15
What happen when we cool a liquid?
lose kinetic energy, force kinethic energy increases , particles change to solid
15
The changes from liquid to gas?
vaporization
10
The changes from gases to liquid?
condensation
10
What is the difference between vaporization and boiling?