Entropy

It is the amount of disorder in a system.

• Enthalpy

• Entropy

• Entrolpy

• Enthralpy

• Maybe Entropy or Enthalpy, they are the same ya know.

If Ice melts, its entropy increases.

• True

• False

• It will not change

Entropy of Gases is greater than that of Solid.

• True

• False

• It will not change

Entropy of Liquid is greater than that of Solid.

• True

• False

• It will not change

Entropy of Solid is greater than that of Gases.

• True

• False

• It will not change

Which law of thermodynamics refers to the Entropy of the Universe?

• Zeroth Law

• First Law

• Second Law

• Third Law

• Fourth Law (if ever there is, because I want to answer the most unreal choice)

Entropy increases from solid, liquid to gas. Why?

• Molecular disorder increases
• Molecular randomness decreases
• Molecules are more energetic
• Molecules are more reactive

Tags

NGSS.MS-PS1-4

The entropy will usually increase when

• a molecule is broken into two or more smaller molecules

• a reaction occurs that results in an increase in the number of moles of gas

• a solid changes to a liquid

• all of these

Which sample has the lowest entropy?

HINT - Look at the phase of each chemical....

• 1 mole of KNO₃(l)

• 1 mole of KNO₃(s)

• 1 mole of H₂O(l)

• 1 mole of H₂O(g)

Tags

NGSS.HS-PS1-3

Which phase of matter has the greatest motion and least orderly arrangement?

• solid
• liquid
• gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4