Heat of Fusion & Vaporization

___________ is measured by the unit Joules.

• Heat energy
• Temperature
• Specific heat

Tags

NGSS.HS-PS3-4

How many Joules of energy are required to make 100 grams of ice at 0 ^οC completely melt?

• 200 J

• 400 J

• 33,400 J

• 2,000,000 J

How many joules are required to boil 75 grams of water?

• 25050J

• 169500J

• 31350J

• 10000J

Tags

NGSS.HS-PS3-1

Heat energy moves from __________ things to _________ things.

• warm / cold
• cold / warm
• liquid / solid

Tags

NGSS.HS-PS3-4

How many Joules of energy are required to make 100 grams of water to completely freeze?

• 200 J

• 400 J

• 33,400 J

• 2,000,000 J

When do you use 334 J/g? You may select more than one answer.

• if a substance is condensing

• if a substance is freezing

• if a substance is evaporating

• if a substance is melting

When do you use 2260 J/g? You may select more than one answer.

• if a substance is condensing

• if a substance is freezing

• if a substance is evaporating

• if a substance is melting

Tags

NGSS.HS-PS3-1

A substance is condensing. Which formula should you use?

• Q= mHf

• Q= mTCp

• Q= mHv

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

Calculate the amount of energy required to freeze 98.0 grams of water?

• 32732J

• 146.3J

• 11690J

• 39939.9J

Tags

NGSS.HS-PS3-1

How much energy is required to completely boil away 150g of water?

• 40080J

• 1417020J

• 339000J

• 439000J

Tags

NGSS.HS-PS3-1