Multiple Choice
The specific heat of liquid ethanol, C2H5OH(l) , is 2.46 J/g·°C and the heat of vaporization is 39.3 kJ/mol.The boiling point of ethanol is 78.3 °C.What amount of enthalpy is required to heat 50.0 g of liquid ethanol from 23.0 °C to ethanol vapor at 78.3 °C?
A) 42.7 kJ
B) 49.5 kJ
C) 179 kJ
D) 1970kJ
E) 6840 kJ
Correct Answer:

Verified
Correct Answer:
Verified
Q39: Use the graph of vapor pressure to
Q40: Use the following data to determine the
Q42: Identify the dominant (strongest)type of intermolecular force
Q47: Indicate all the types of intermolecular forces
Q48: Sodium iodide, NaI, melts at 651°C.In its
Q49: What mass of water would need
Q57: Arrange the following substances in order of
Q64: Potassium crystallizes in a body-centered cubic lattice.
Q120: All intermolecular forces must be overcome in
Q132: Acetic acid has a heat of fusion