Answer:
Plasmas that reach a temperature equal to their surroundings.
Explanation:
I'm studying this right now and took a similar test.
You can change any variable in an experiment (the amount of water, sun, type of light, fertilizer etc.) but for the experiment to be VALID only one thing can be changed for the experiment.
Example: I’m trying to see if the plant will grow better with more or less water so the only thing that changes is the amount of water. Everything else will have to be the same (type of plant, fertilizer,dirt, container it grows in, amount of light etc.)
<u>Answer:</u> When evaporation occurs, the osmotic pressure increases.
<u>Explanation:</u>
Osmotic pressure is defined as the minimum excess pressure that can be applied on the solution to prevent the entry of the solvent into the solution through a semipermeable membrane. The formula to calculate osmotic pressure is given by the equation:
![\pi=cRT](https://tex.z-dn.net/?f=%5Cpi%3DcRT)
where,
= osmotic pressure
c = concentration of solute
R = gas constant
T = temperature
As, concentration of solute is directly proportional to the osmotic pressure. So, when concentration increases, osmotic pressure also increases and vice-versa.
Evaporation is a process when liquid changes its state to gaseous state by increasing the temperature. In this process, solvent particles escape and more and more solute particles remain in the solution. So, concentration of solute particles increases.
Hence, evaporation causes increase in the osmotic pressure.
Mass Number = Proton + Neutron = 2 + 3 = 5