13. Propane's melting point is -188 °C. It's boiling point is -42 °C. A 200 g sample of propane at -80 °C is warmed to 0 °C. The specific heat of propane gas is 1.68 J/gC. The
specific heat of liquid propane is 2.11 J/gC.
a. Draw a full heating/cooling curve and clearly darken the region this represents.
Label the key temperatures, the states of matter, the types of energy in each
region.
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b. Draw an energy bar diagram for this situation. (2 points) -
Calculate the total energy for the process. (5 points) -3
2.1/d. Is the process endothermic or exothermic? Explain why. (2 points)Vaz
C.