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Question
Q274) The energy absorbed by each molecule (A2) of a substance is 4.4 × 10–19J and bond energy per molecule is 4.0 × 10–19 J. The kinetic energy of the molecule per atom will be [AIPMT (Prelims)-2009]



SOLUTION

KE = Energy observed by molecule – Energy required to break one bond Now A2 have two atoms Thus Energy per atom= KE/2
Answer:(d)