Why is the boiling temperature of C2H5OH 78C and water is 100C at 760 Torr.

Answer 1

Because the vapor pressure of C2H5OH is 760 mm at 78 degrees C. And because the vapor pressure of H2O is 760 mm at 100 degrees C. The definition of boiling point is that temperature at which the vapor pressure of the liquid equals atmospheric pressure.

Answer 2

140.500 micrometers converted to pounds

Answer 3

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Answer 4

H2O has hydrogen bonding whereas C2H5OH has weak Van Der Waals forces. The stronger the bond holding the molecules of a substance together, the higher the boiling point of the substance. Hydrogen bond is stronger than van der waal's forces.