Thermochemistry: Review of ALL Concepts

What is the definition of "entropy"??

• enthalpy

• heat content

• disorder

• activation energy

Which phase of matter has the least entropy?

• solid

• liquid

• gas

• plasma

Tags

NGSS.HS-PS3-4

What phase of matter has the most entropy?

• solid

• liquid

• gas

Which involves an increase in entropy? (if needed, select more than one answer)

• spraying an air freshener

• picking up apples off the ground

• dropping an egg on the floor

• arranging a deck of cards by suit

Tags

NGSS.HS-PS3-4

Which involves a decrease in entropy? (if needed, select more than one answer)

• condensation

• melting

• sublimation

• freezing

At what temperature would the reaction of vinegar and baking soda occur the fastest?

• 0^oC

• 50^oC

• 75^oC

• 120^oC

Tags

NGSS.HS-PS1-5

Why does a thermometer display a high temperature with hot coffee?

• the molecules are moving slowly & have many collisions with the thermometer

• the molecules are moving slowly & have few collisions with the thermometer

• the molecules are moving quickly & have many collisions with the thermometer

Which number represents condensation?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Which number represents melting?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which represents the LIQUID phase?

• A

• B

• C