The gas used in a refrigerator to cool water is___________?
A. Nitrogen
B. Carbon dioxide
C. Methane
D. Tetrafluoroethane
B. Carbon dioxide
C. Methane
D. Tetrafluoroethane
Details:
Tetrafluoroethane is a hydrofluorocarbon and haloalkane refrigerant with thermodynamic properties similar to R-12 but with insignificant ozone depletion potential and a lower 100-year global warming potential. It has the formula CF₃CH₂F and a boiling point of −26.3 °C at atmospheric pressure.