Heat of Fusion

When water is heated from 10°C to 15°C What is the change in temperature?

• 10 °C
• 5 °C
• 15 °C
• 25 °C

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

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

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

How many Joules of energy are required to make 100 grams of ice at 0 ^οC completely melt? The heat of fusion of ice is 334 J/g

• 200 J

• 400 J

• 33,400 J

• 2,000,000 J