本题目来源于试卷: 美国2021年物理杯赛真题 PHYSICS BOWL 2021，类别为 美国物理杯赛(Physics Bowl)
[单选题]
Electric energy can be generated in many ways, two of which are with nuclear plants using nuclearfission reactions, or coal fired plants utilizing chemical reactions. Energy density for a fuel has unitsof Joules/kilogram. What is the approximate ratio of nuclear versus chemical energy density?
A. 1
B. $10^3$
C. $10^6$
D. $10^9$
E. $10^ {12} $
参考答案: C
本题详细解析:
Fission yields energy density on a MeV scale while chemical energy density is eV scale.
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