(1) How much energy and how much money do you use to run
your window air conditioner rated at 1000 watts continuously for the month of
July (assume 8¢/kWh).
If
you assume that coal was used to produce the electricity for your air
conditioner, how much coal was burned to produce the electricity used?
How
much CO2 was produced by the electricity used to run your air
conditioner?
DOL:
Radioactive isotopes
are widely used in the field of medicine, in the generation of electricity, and
in the military. The use of radioactive
isotopes has increased significantly over the past fifty years, leading to a
corresponding increase in the amount of radioactive waste produced. The
question of how to deal with radioactive waste is a topic of ongoing
environmental concern.
(a) Explain how the
properties of low-level radioactive waste differ from those of high-level
radioactive waste and how these properties lead to different storage
requirements. For one of the two types of radioactive waste, give an example of
a specific isotope that may be present in the waste, and explain how human
activity generates the waste.
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