How many degrees of freedom does a diatomic molecule have?
a. 3
b. 6
c. 5
d. 7
e. 9
[Ques. 2] The calendar we presently use is the ______________ calendar.
Fill in the blank(s) with correct word
[Ques. 3] If a wave has a frequency of 15 Hz, it has a period of
a. 1/15 s.
b. 3.9 s.
c. 225 s.
d. 15 s.
[Ques. 4] Which of the following refer to the basic categories associated with the energy of a single molecule in a gaseous phase?
a. nuclear, electronic, interval
b. electronic, translation, rotation, vibration
c. ionic, covalent, hydrogen, Van der Waals
d. translation, rotation, vibration
e. dipole-dipole, covalent, ionic, translation
[Ques. 5] The equator has approximately ______________ hours of daylight every day of the year.
Fill in the blank(s) with correct word
[Ques. 6] Wave frequency could be given in
a. 1/s.
b. s-1
c. Hz.
d. any of these.
[Ques. 7] The dissociation energy of the hydrogen molecule is approximately 5 eV. What is the temperature of a monatomic molecule whose kinetic energy is equal to 5.000 eV?
a. 28990 K
b. 57970 K
c. 38650 K
d. 23190 K
e. 12880 K
[Ques. 8] The number of daylight hours before 12 noon is approximately the ______________ as the number after 12 noon.
Fill in the blank(s) with correct word
[Ques. 9] Wave amplitude is related to
a. wave velocity.
b. frequency.
c. energy.
d. wavelength.
[Ques. 10] The energy released when an atom takes an electron is called
a. internal energy
b. dissociation energy
c. binding energy
d. electron affinity
e. ionization energy
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