Chemistry 11 Practice Quiz for Heat and Phases
Solutions

 

1)      Compare the macroscopic and microscopic properties of sold and liquid phases.

2)      Water ice at 0ºC is melted to make liquid water at 0ºC by adding 200,000 J of heat energy.  How much ice will be melted? 

3)      500 g of liquid water at 10ºC releases 17,000 J of heat energy.  What will its final temperature be?

4)      Consider the graph here:

a)      What is the melting point for this substance?

b)      What is the boiling point for this substance?

c)      For which phase is the specific heat biggest?

d)      For which phase is the specific heat smallest?

 

Data for Water

L_f= 3.35 × 10⁵J/kg

L_v= 2.26 × 10⁶J/kg

C_{liq water} = 4186 J/kgCº

C_ice = 2000 J/kgCº