Answer:
Rotational spectroscopy, the dipole moment must change during the transition.
Rotational Raman spectroscopy, molecule must have anisotropic polarizability
Vibrational and electronic spectroscopy, molecule must have permanent dipole moment.
Explanation:
-
For the vibration rotation spectrum to be observed, it is necessary to change the dipole moment during the vibration.
- Raman scattering using an anisotropic crystal gives information about the orientation of the crystal. The polarization of Raman scattering light relative to the crystal, and the polarization of laser light, can be used to determine the orientation of the crystal, provided the crystal structure is known.
You want the saturated vapour pressure,
P
SVP
.
Explanation:
This is a function of temperature only, and at
283
⋅
K
this site reports that the vapour pressure of water,
P
SVP
, is
9.2
⋅
m
m
⋅
H
g
.
And so,
P
Measured
=
P
gas
+
P
SVP
,
P
Gas
=
P
Measured
−
P
SVP
750
⋅
m
m
⋅
H
g
−
9.2
⋅
m
m
⋅
H
g
=
741.8
Answer: See explanation
Explanation:
Based on the information given in the question, the ranking from the first step to the last step goes as follows:
1. Dissolution of salt into cations and anions
2. Hydration of anions
3. Hydration of cations
4. Dissolved cations and anions begin to deposit as a solid salt.
5. Rate of dissolution is equal to the rate of recrystallization.