estimate the energy that would be obtained from U235 in 1 gram of natural uranium dioxide after one year in a CANDU reactor where the average neutron flux is 3x1013 n/cm2 /s. Assume the thermal efficiency of the reactor is 33%. a) A typical Ontario house uses 32 GJ of electricity per year according to Stats Canada (http://www.statcan.gc.ca/pub/11-526-s/2010001/t004- eng.htm). How many Ontario houses could be supplied with their annual electricity from a single CANDU fuel bundle? b) Compare the number of houses calculated above with the number quoted in the first lecture. These numbers are different. Explain the difference