Which of the following physical processes cannot be explained by the molecular theory of matter?
evaporation
thermal conduction
radiation of heat
convectional current of fluids
Correct answer is C
No explanation has been provided for this answer.
Absorption line spectra exhibited by atoms is a result of
change in the kinetic energy of a movimg atom
instability of the nucleons
excitation of an electron in the atom
transition of an electron from a higher to a lower energy level
Correct answer is D
No explanation has been provided for this answer.
1.8 x 1020J
1.8 x 1013J
1.8 x 1011J
1.8 x 1010J
Correct answer is D
No explanation has been provided for this answer.
84 days
70 days
56 days
40 days
Correct answer is B
No explanation has been provided for this answer.
198
83
82
80
Correct answer is B
No explanation has been provided for this answer.