Which of the following statements is true? a) 235U ions can be separated from 23

ID: 820360 • Letter: W

Question

Which of the following statements is true?

a) 235U ions can be separated from 238U ions by an ion exchange process.

b) Emission of a beta particle from 65Ni gives 65Cu.

c) Radiocarbon dating of the Shroud of Turin showed the Shroud could have been the burial cloth of Christ.

d) One RAD of alpha radiation has a larger biological effect than one RAD of beta radiation.

e) Exposure to 1000 mREMs would almost certainly kill you.

f) 60Co is radioactive, but 59Co is not.

g) Biodiesel from soybean oil would have a lower cloud point than biodiesel made from animal fat.

h) Energy use in the U.S. is growing faster than energy use in the rest of the world.

i) Nuclear power generates roughly 5% of the electricity used in the U.S.

j) Cellulose (biomass) produces less energy per gram than does oil.

k) Coals origins are primarily from terrestrial plants.

l) Developing nations tend to use more biomass and coal than petroleum and natural gas.

m) Fuel cells are typically run at elevated temperatures because this increases the thermodynamic efficiency of the reaction.

n) In an alkaline fuel cell, water is produced at the anode.

o) In a molten carbonate fuel cell, the reaction at the cathode is reduction of CO2.

p) Fuel cells are operated at high temperatures in order to increase their thermodynamic efficiency.

q) U.S. oil production peaked in 2010.

r) If the diameter of a wind turbine increases from 150 ft to 300 ft, the power generated will double.

EXPLAIN FALSE STATEMENTS.

a) false :not ion exchange

e) false: 600000 mREM will kill every1 exposed

h)false: avg growth worldwide is 39%, USA is 20%

i)false: Nuclear power generates roughly 8.4% of the electricity used in the U.S.

l)false: Developing nations tend to use more coal and petroleum than biomass and natural gas

q)false

r)false: increases almost 4 times

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