Specific Heat Calculations, Phases & Phase Change Diagrams

The measure of average kinetic energy of all the particles within an object is called ____________. 

• temperature
• conduction
• radiation
• heat 

How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22.0°C to 55.0°C, if the specific heat of aluminum is 0.903 J/g°C?

• 298 Joules

• 0.003 Joules

• 297 J/g°C

• 0.003 J/g°C

For a skillet, used for cooking, do you want a high or low specific heat

• High, so that it will need more energy to heat up
• Low, so that it will change temperature quickly

The specific heat(c) of copper is 0.38 J/g °C. What is the temperature change(∆t) when 100.0 Joules of heat(Q) is added to 20.0 grams?

• 13 °C

• 13.2°C

• 13.16 °C

Which of the following is NOT true about heat? 

• Heat moves from hot to cold
• Heat is a form of energy
• Heat cannot be transferred
• Heat makes molecules speed up 

Which of the following terms identifies the change from a liquid to gas?

• Vaporization
• Condensation
• Deposition
• Sublimation

Using the heat equation, what would the formula look like if we were solving for change in temperature?

• Q m = ∆T Cp
• Q / (m Cp)  =  ∆T
• Q m / Cp  =  ∆T
• m c Q  =  ∆T

Between which two points is the solid cooling?

• A <---- B

• B <----> C

• C <---- D

• D <----> E

• E <---- F

Between which two points is the gas condensing?

• A <---- B

• B <---- C

• C <---- D

• D <---- E

• E <---- F

A substance's heating curve is shown in the graph.  What is its boiling point?

• 100 C
• 60 C
• 80 C
• 20 C