Heating/cooling curve Review

What line segment represents only the solid state?

• A-B
• B-C
• C-D
• D-E

In which segment is the kinetic energy remaining constant?

• A-B
• B-C
• C-D
• 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

The diagram represents two solids and the temperature of each. What occurs when the two solids are placed in contact with each other?

• Heat energy flows from solid A to solid B. Solid A decreases in temperature

• Heat energy flows from solid A to solid B. Solid A increases in temperature

• Heat energy flows from solid B to solid A. Solid B decreases in temperature.

• Heat energy flows from solid B to solid A. Solid B increases in temperature.

How much energy is released to freeze a 10g cube of ice at 0°C? (Which equation will you use?)

• Q = mΔH

• - Q = mΔH

• Q = mcΔT

• -Q = mcΔT

How much energy is required to melt a 10g cube of ice at 0°C? (Which equation will you use?)

• Q = mΔH

• - Q = mΔH

• Q = mcΔT

• -Q = mcΔT

How much energy is released to when water is cooled from 10⁰C to 90⁰C? (Which equation will you use?)

• Q = mΔH

• - Q = mΔH

• Q = mcΔT

• -Q = mcΔT

How much energy is needed to heat water from 10⁰C to 110⁰C? (Select all the equations you will you use?)

• Q = mΔH

• - Q = mΔH

• -Q = mcΔT

Which line segment represents the substance only in the solid state?

• Solid

• Liquid

• Gas