At sea level, the size amid the 2 alkanes lets for pentane to simmer at a lower temperature than hexane. Phenol has a higher boiling point due to hydrogen bonding High altitude would have the same order while low pressure only cuts the temperature at which a solvent boils. Boiling has to do with molecular size, the occurrence/nonappearance of hydrogen bonds, and other steric issues.
So the answer would be pentane high altitude, hexane high altitude, hexane sea level, hexanol sea level. In order of boil first to boil last. This is clarified because altitude has a better effect on vapor pressure (and hence boiling points) than inter-molecular forces.
Ways to increase friction
<span>- increase the roughness of the contact materials </span>
<span>- increase the pressure on the contact </span>
<span>Ways to decrease friction </span>
<span>- float the moving body on air </span>
<span>- suck out any air </span>
Answer:
<h2>0.9 Joules</h2>
Explanation:
Elastic potential energy of a spring= 1/2 × Spring constant × displacement²
following calculations you will get ur answer!!
1). A radio EM wave has a frequency somewhere between 10 KHz and 300 GHz, whereas a visible light EM wave has a frequency somewhere between 428,000 GHz and 790,000 GHz.
2). A radio EM wave has a wavelength somewhere between 1 mm and 30 km, whereas a visible light EM wave has a wavelength somewhere between 380-700 nanometers.
Answer:
C
Explanation:
Gravitational forces are acting on a masses . It gives
F = (GmM)/ r2
F - force acting on two masses
G - Gravitational Constant
m, M - Mass
r - distance between two mass
Magnetic force acting on due to magnetic fields
Nuclear force is acting on due to nuclear reaction . This is happened inside th sun between H and He
Elastic force is acting due to stress and strain of the object
