Chemistry #4 Phases

What does temperature do?

• Measures average kinetic energy of the particles of a substance

• Calculates average potential energy of the particles of a substance

• Measures most kinetic energy of the atoms of a substance

• Measures how hot something is and not coldness

Which unit is used to express pressure of a gas

• Mole

• Pascal

• Joules

• Kelvin

What is volume?

• The amount of time the particles of an object spends; units: minutes and seconds

• The amount of space something of an quantity take up; units: cm^3

• The amount of space the particles of an object take up; units: cm^3, L

• The amount of space the particles of an size take up; units: m^2, ml

What is pressure?

• How often the people of a substance go to the walls of its container

• How slow and how often the atoms of a substance hit the electrons of its protons

• How soft and how rarely the particles of a substance hit the walls of its container

• How hard and how often the particles of a substance hit the walls of its container

An increase in the average kinetic energy of a sample of copper atoms occurs with an increase in

• Temperature

• Concentration

• Pressure

• Volume

When do you have to convert Celsius to Kelvin

• To make sure to not have a ridiculous amount of numbers

• You do this to temperature to avoid multiplying by 0 or dealing with negative numbers

• To have the correct answer with one part of solving it

• Neither explain why to convert Celsius to Kelvin

What kelvin temperature is equal to 56°C?

• -217 K

• 56 K

• 329 K

• -273 K

What does STP stand for?

• Stand and count Times Percent and you can find it in Table T

• Standard Time Percentage and you can find it in Table Z

• Secret Temperatures Pressure's and you can find it in Table B

• Standard temperature and pressure and you can find it in Table A; it also serves as a frame of reference

What is sandard temperature?

• 0 degrees Celsius or 273 K

• 273 degrees Celsius or 0 K

• 0 degrees Celsius or -273 K

• 0 degrees Celsius or 546 K

What is standard pressure?

• 1 kPa or 101.3 atm

• 1 atm or 101.3 kPa

• 1 atm or 100 kPa

• 0.5 atm or 1013 kPa