Nuclear power

Question 1

3 Properties

Answer 1

-Need high technology requirements
-Finite
-Very high energy density , 1kg of uranium can release as much energy as 13 tonnes of coal

Question 1

Nuclear fission process

Answer 1

neutron bombardment
Fissile fuel uranium 235
Creates large amounts of thermal energy
Boil water to steam
Steam turns turbine to create electricity

Question 2

3 Environmental impacts and their controls

Answer 2

-Mining of uranium ore to create fuel= habitat loss , dust , noise , control by restoration/landscaping , water sprays and baffle mounds
-High embodied energy=climate change control by using molten salt as liquid coolant which reduces size and pressure required making it more efficient
-Radioactive waste , health risks of ionising radiation control by using thorium/breeder reactor which produces much less waste

Question 3

3 conditions needed for fusion

Answer 3

-Heavy nuclei , will have more momentum and be able to overcome repelling positive nuclei
-Very high temperature to increase kinetic energy of nuclei and increase rate of nuclei collisions
-vacuum so plasma is not cooled by air