Heat Change

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-PS3-4

How many Joules of energy are required to make 100 grams of ice at 0 ^οC completely melt? The specific latent heat of fusion of ice is 334000 J/kg

• 200 J
• 400 J
• 33,400 J
• 2,000,000 J

Calculate the amount of energy required to melt 35.0 grams of ice.
(not in sig figs)  H_f = 80.0 cal/g,  H_v = 560.0 cal/g, S_H = 1.00 cal/g ºC

• 19,600 cal
• 35.0 cal
• 2,800 cal 
• 1,568,000 cal 

Tags

NGSS.HS-PS3-1

How many calories are required to boil 75 grams of water?
(not in sig figs)  H_f = 80.0 cal/g,  H_v = 560.0 cal/g, S_H = 1.00 cal/g ºC

• 6,000 cal
• 3,360,000 cal
• 42,000 cal
• 7.46 cal

Tags

NGSS.HS-PS3-1

If a 8.50g ice cube at -10^o C sits out on the counter, completely melts, and then warms to room temperature (25^o C) how much energy did the ice cube absorb? Use C = 2.108 J/g^oC for ice, C = 4.184 J/g^oC for water, and H_f = 334 J/g.

• 179.18 J
• 2839 J
• 889.1 J
• 3907.3 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

How much energy is required to completely boil away 150g of 10^o C water? Use C = 4.184 J/g^oC for water, and H_v = 2260 J/g.

• 56,484 J
• 339,000 J
• 395,484 J
• 385,484 J

Tags

NGSS.HS-PS3-1

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

Tags

NGSS.HS-PS3-4

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

• 25050J

• 169500J

• 31350J

• 10000J

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

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

NGSS.HS-PS3-4