Answer:
B. The time during which a collision between two molecules occurs is negligibly short compared to the time between collisions
Explanation:
Kinetic molecular theory postulates:-
- The gas is composed of small molecules are they are in continuous random motion and having elastic collisions with one another and also with the walls of the container.
- The molecules of the gas does not exert any kind of repulsive or attractive forces on each other and they their size is negligible as compared to the difference between them.
- Pressure exerted by the molecules of the gas results from the collisions which is happening between the molecules of the gas and the walls of the container.
- Average kinetic energy of molecules of the gas is directly proportional to absolute temperature.
Hence, The correct option is:- <u>B. The time during which a collision between two molecules occurs is negligibly short compared to the time between collisions. This is not an important postulate of the kinetic molecular theory.</u>
Answer:
Explanation:
Speed of light = Wavelength x Frequency.
605 nm x Frequency = 3x10^8 m/s
6.05 x 10^-7 m x Frequency = 3x10^8 m/s
Frequency = 4.96 x 10^14 Hz
It's an alkali metal so one, they sit on the very first of the column in the periodic table :DDDD
Answer:
C
Explanation:
Fresh water fish need freshwater.
