Thermochem Review

When a  piece of aluminum foil is taken out of the oven and cools from 100°C to 50°C.
What is the change in temperature?

• 50°C
• 0°C
• 100°C
• 150°C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How much energy is required to heat up 12kg of copper from 10 °C to 120 °C. The specific heat capacity is 390 J/kg °C.

• 46800 J
• 561600 J
• 514800 J

Tags

NGSS.HS-PS3-1

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

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

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

What  is the formula to calculate heat energy required to raise the temperature of any substance?

• Q=mc∆t
• Q=mc
• Q= ½mv
• m=QC

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The symbol for specific heat is .......

• c
• Q
• m
• t