Multiple Choice
Dioxane, C4H8O2, has an enthalpy of fusion of 145.8 J g-1 and its melting point temperature is 11.0°C. How much heat is required to transform 142 g of solid dioxane, into liquid dioxane, at 11.0°C?
A) 1.60 kJ
B) 2.59 kJ
C) 20.7 kJ
D) 22.8 kJ
E) 40.3 kJ
Correct Answer:

Verified
Correct Answer:
Verified
Q17: Solid carbon dioxide never forms a liquid
Q18: The following questions refer to the diagram
Q19: Which of the following liquids, at the
Q20: In a one-element solid with a simple
Q21: An unknown solid is hard and brittle
Q23: A unit cell of sodium chloride (face-centered
Q24: Which compound is expected to exhibit hydrogen
Q25: Which compound should have the highest boiling
Q26: Why would the coffee purchased in a
Q27: The normal boiling point of 2,3,4-trimethypentane, C<sub>8</sub>H<sub>18</sub>,