In a Fission Reaction,a ²³⁵U Nucleus Captures a Neutron

question 65

Multiple Choice

In a fission reaction,a ²³⁵U nucleus captures a neutron.What energy is released if the products are ¹³⁹I,⁹⁵Y and two neutrons? (atomic masses: ²³⁵U,235.043 9;¹³⁹I,138.935 0;⁹⁵Y,94.913 4;neutron,1.008 67;and 1 u = 931.5 MeV/c²)

• A)123 MeV
• B)174 MeV
• C)199 MeV
• D)218 MeV

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Definitions:

Inheritance Of Acquired Characteristics

A discredited biological hypothesis originally proposed by Jean-Baptiste Lamarck, suggesting that traits developed during an organism's life can be passed on to its offspring.

Jean-Baptiste Lamarck

A French naturalist who proposed an early theory of evolution, suggesting that organisms could pass on traits acquired in their lifetime to their offspring.

Analogies

In biology, structures possessed by different organisms that are superficially similar due to similar function but that do not share a common developmental pathway or structure.

Homologies

In biology, structures possessed by two different organisms that arise in similar fashion and pass through similar stages during embryonic development, although they may have different functions.