Enthalpy of Fusion and Vaporization

How much heat is required to condense 10 g of water? $$\Delta H_{fus}=6.01\ \frac{kJ}{mol},\ \Delta H_{vap}=40.7\ \frac{kJ}{mol}$$

How much energy is released when 15 grams of water freezes?

$$\Delta H_{fus}=6.01\ \frac{kJ}{mol},\ \Delta H_{vap}=40.7\ \frac{kJ}{mol}$$

How much energy is required to evaporate 20 g of ethanol? $$\Delta H_{fus}\left(C_2H_5OH\right)=5.02\ \frac{kJ}{mol};\ \Delta H_{vap}\left(C_2H_5OH\right)=42.4\ \frac{kJ}{mol}$$

Which value would you use to calculate the energy required to melt water?

According to the graph, which phase change requires more energy?

The ability to do work is called...

The movement of energy from a warmer object to a cooler object is called...

How much energy is required to melt 5 grams of water? $$\Delta H_{fus}=6.01\ \frac{kJ}{mol},\ \Delta H_{vap}=40.7\ \frac{kJ}{mol}$$

Which of the following would be needed to calculate the amount of energy released when a substance freezes?

Which value would you use to calculate the energy required to boil a substance?