NEET2009ChemistryStates of MatterActual
The energy absorbed by each molecule ( A ₂ ) of a substance is 4.4 10⁻¹⁹ ~J and bond energy per molecule is 4.0 10⁻¹⁹ ~J . The kinetic energy of the molecule per atom will be :
Options
- A4.0 10⁻²⁰ ~J
- B2.0 10⁻²⁰ ~J
- C2.2 10⁻¹⁹ ~J
- D4 10⁻¹⁹ ~J
Correct answer
B. 2.0 10⁻²⁰ ~J
Step-by-step solution
gathered KE =4.4 10⁻¹⁹-4.0 10⁻¹⁹ KE / molecule =0.4 10⁻¹⁹ KE / atom = 0.4 10⁻¹⁹ 2 =2 10⁻²⁰ ~J gathered