Answer:
A. There was still 140 ml of volume available for the reaction
Explanation:
According to Avogadro's law, we have that equal volumes of all gases contains equal number of molecules
According to the ideal gas law, we have;
The pressure exerted by a gas, P = n·R·T/V
Where;
n = The number of moles
T = The temperature of the gas
R = The universal gas constant
V = The volume of the gas
Therefore, given that the volumes and number of moles of the removed air and added HCl are the same, the pressure and therefore, the volume available for the reaction will remain the same
There will still be the same volume available for the reaction.
<u>Answer:</u> The frequency of the radiation is 33.9 THz
<u>Explanation:</u>
We are given:
Wave number of the radiation, 
Wave number is defined as the number of wavelengths per unit length.
Mathematically,

where,
= wave number = 
= wavelength of the radiation = ?
Putting values in above equation, we get:

Converting this into meters, we use the conversion factor:
1 m = 100 cm
So, 
- The relation between frequency and wavelength is given as:

where,
c = the speed of light = 
= frequency of the radiation = ?
Putting values in above equation, we get:


Converting this into tera Hertz, we use the conversion factor:

So, 
Hence, the frequency of the radiation is 33.9 THz
The kinetic energy (energy of movement) of the gas particles will increase.
3.1 is not the same as 2.97