1) the temperature above which the gas cannot be made to liquefy a) Critical Temperature b) boiling point c) molar heat d) normal boiling point 2) it is the vapor pressure pressured when a dynamic equilibrium exist between condensation and evaporation a) rate of condensation b) rate of evaporation c) equilibrium vapor pressure d) dynamic equilibrium 3) the energy required to vaporize 1 mole of liquid  a) molar heat of vaporization b) gas constant c) vapor pressure d) molar heat of sublimation 4) it summarizes the conditions at which a substance exist at a solid, liquid, or gas a) matter of a boiling point b) critical temperature c) triple point d) phase diagram 5) does a vapor pressure of a liquid is equal to the external pressure? a) yes b) no c) maybe d) next question please 6) it is a form of solid to liquid a) condensation b) melting c) evaporation d) molar mass 7) according to the dynamic equilibrium rate of condensation is equal to what? a) rate of sublimation b) rate of evaporation c) rate of melting d) rate of vapor pressure 8) the __ point is where all __ phases meet a) Mono, 1 b) Double, 2 c) Triple, 3 d) Quadruple, 4 9) it is the minimum pressure that must be applied to bring about liquefaction a) vaporization of molar heat b) boiling point c) critical temperature d) critical pressure 10) according to the molar heats of fusion for selected substances what substance, which has the high melting point a) argon b) benzene c) water d) ethanol

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