14. Which of the following statement is correct?
(a) Materials existing as liquids at room temperature have their melting and boiling points lower than
that of room temperature.
(b) The phenomenon involving the transition of a substance from solid to liquid state is called
sublimation
(c) To convert a temperature on the Celsius scale to Kelvin scale, subtract 273 from the given
temperature
(d) The density of ice is less than that of water.
