Adding a nonvolatile solute to a solution decreases the vapor pressure of the solution. True or False

True.

Explanation:

Adding a non - volatile solute to solvent, decreases the tendency for water molecules to evaporate into gas phase i.e these non - volatile solute particles obstruct or reduce the rate of evaporation. Few water molecules in the vapour.

Therefore, Adding a nonvolatile solute to a solution decreases the vapor pressure of the solution while

Vapor pressure is a measurement of the likelihood of the molecules of a pure solvent to change from the liquid to the vapor phase.

Using Raoult's Law:

Psol = Xsolv * P°solv

where:

Psol = the vapor pressure of the solvent above the solution,

Xsolv = the mole fraction of the solvent in the solution, and

P°solv = the vapor pressure of the pure solvent.

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is