The effects of Chlorofluorocarbon and its substitutes on earth’... | Filo

Question 6Depletion of ozone is mainly due toa chlorofluorocarbon compoundsb carbon monoxidec methaned pesticides

SOLVED:The chlorofluorocarbon refrigerant Freon-12, CCl2  F2, was banned in 1995 to help protect the ozone layer. Most new air conditioning units now use the refrigerant tetrafluoroethane, CF3 CH2  F. The enthalpy of vaporization of Freon-12 is 155  J ·g^-1 and that of tetrafluoroethane is 215.9  J ·g^-1. Estimate the number of grams of Freon-12 that must be vaporized to freeze a tray of 16 one-ounce (1 oz=28  g) ice cubes with the water initially at 18^∘ C. How many grams of tetrafluoroethane a

CFC's ( ChlorofluoroCarbons ) Chlorofluorocarbons are fully or partially halogenated hydrocarbons that contain carbon, hydrogen, chlorine and fluorine produced as volatile derivatives of methane ethane and propane. They are also commonly known as dupont brand name freon. #cfc #carbon #nitrogen #fluoro #science #chemistry #physics #reel #education #cfcfamily #hydrocarbon #knowledge | Cosmos-SpacetimeOdyssey

Chlorofluorocarbons | CFC Definition, Examples & Consequences

Chlorofluorocarbons (CFCs) | Ecologist

1. Refrigerators make use of the heat absorption required to vaporize a volatile liquid. A fluorocarbon has a molar heat of vaporization of 26.0  kJ / mole at 250  K and 750 torr. Calculate Q, W, Δ H, and Δ U when 1 mole is vaporized at this temperature and pressure.Ans. 39  kJ,-3.12  kJ, 39.0  kJ, 35.9  kJ