Polarity and Boiling Point: The polarity of the molecules determines the forces of attraction between the molecules in the liquid state. Polar molecules are attracted by the opposite charge effect (the positive end of one molecule is attracted to the negative end of another molecule.
The five disadvantages of solar power. It's intermittent. Solar energy is only available when the sun is shining. It's low efficiency. It requires large areas of land. It's not completely free of environmental impact. Ultrapure polysilicon is now scarce. It's high cost.
That can hurt consumers in the long run, since solar power. helps us hedge against volatile fuel prices as Albertaâs. electricity grid becomes more reliant on natural gas. The. province will also miss out on the valuable carbon and. air pollution reductions that solar energy offers. How solar lowers your power bill.