Structure of Atom - Result Question 5

####5. The energy absorbed by each molecule (A2) of a substance is 4.4×1019J and bond energy per molecule is 4.0×1019J. The kinetic energy of the molecule per atom will be:

(a) 2.2×1019J

(b) 2.0×1019J

(c) 4.0×1020J

(d) 2.0×1020J

[2009]

Show Answer

Solution:

  1. (d) K.E per atom

=(4.4×1019)(4.0×1019)2=0.4×10192=2.0×1020J



NCERT Chapter Video Solution

Dual Pane