Thermal energy would naturally flow between objects at which temperatures?
1 answer:
You might be interested in
Answer:
The new volume will be 3.67 L.
Explanation:
As the volume increases, the gas particles (atoms or molecules) take longer to reach the walls of the container and therefore collide with them fewer times per unit of time. This means that the pressure will be lower because it represents the frequency of collisions of the gas against the walls. In this way pressure and volume are related, determining Boyle's law which says:
"The volume occupied by a certain gaseous mass at constant temperature is inversely proportional to pressure"
Boyle's law is expressed mathematically as:
P*V=k
Now it is possible to assume that you have a certain volume of gas V1 that is at a pressure P1 at the beginning of the experiment. If you vary the volume of gas to a new value V2, then the pressure will change to P2, and it will be fulfilled:
P1 * V1 = P2 * V2
In this case:
- P1= 1.85 atm
- V1= 4.64 L
- P2= 2.34 atm
- V2= ?
Replacing:
1.85 atm* 4.64 L= 2.34 atm* V2
Solving:
V2= 3.67 L
<u><em>The new volume will be 3.67 L.</em></u>
Solution :
When non volatile solute is added to solvent, vapor pressure gets lowered.
Relative lowering in vapor pressure is given :
=
of solute
= vapor pressure of pure solvent
P = vapor pressure of solution
= mole fraction of solute
=
=
Number of moles
1. For 10 g of
Ions = 2
It will affect colligative property.
Relative lowering in vapor pressure will be :
2. For 20 g sucrose
Sucrose is non electrolyte, i = 1
3. For 20 g of glucose.
Glucose is a non electrolyte, i = 1
is same in all three solutions.
Hence, lowering in vapor pressure is maximum in and minimum is Sucrose.
Vapor pressure from lowest to highest.
10 g of < 20 g of glucose < 20 g of sucrose