Extra Thermo Practice S23

If 238 J of heat is absorbed by a sample of metal with a mass of 40.7 g, and it raises the temperature from 20.0°C to 32.4°C, what is the specific heat capacity of the metal? (show your work)

• 2.34 J/g°C
• 0.472 J/g°C
• 6.13 J/g°C
• 0.163 J/g°C

Tags

NGSS.MS-PS3-4

What letter represents a liquid being heated?

• A
• B
• C
• D

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

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, C_p = 1.00 cal/g ºC

• 19,600 cal

• 35.0 cal

• 2,800 cal

• 1,568,000 cal

Tags

NGSS.MS-PS1-4

What is the freezing point for this substance?

• 60 °C
• 40 °C
• 80 °C
• 100 °C

Tags

NGSS.MS-PS1-4

Is Evaporation endo or exothermic?

• endothermic
• exothermic

Tags

NGSS.MS-PS1-4

What letter represents boiling?

• B
• C
• D
• E

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

How much energy would be needed to heat 450 grams of copper metal from a temperature of 25.0ºC to a temperature of 75.0ºC? (The specific heat of copper at 25.0ºC is 0.385 J/g ºC.)

• 4,000 J
• 8,700 J
• 5,000 J
• 3,578 J

Tags

NGSS.MS-PS3-4

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

• 200 J

• 400 J

• 33,400 J

• 2,000,000 J

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

If I have 2 blocks of Aluminium (one of 1kg and one of 10 kg) and heat them up.
Which one heats up the fastest.

• 1 kg
• 10 kg
• They both heat up at the same speed
• They don't heat up.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

Temperature is a measure of the average kinetic energy of the particles in a sample of matter

• True
• False

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4