Chloroflurocarbons (cfcs) are no longer used as refrigerants because they destroy the ozone layer. trichlorofluoromethane (ccl3f) boils are 23.8c and its molar heat of vaporization is 24.8 kj/mol. calculate the molar entropy of evaporation of cc3f (l)

Which actions would increase the rate at salt dissolves in water? stir the water? crush the salt? use less water? heat the water? cool the salt

What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.