By measuring the equilibrium between liquid and vapour phases of an acetone (a)–methanol (m) solution at 57.2°c at 1.00 atm, it was found that 400 0.x a = when 516 0.y a = . calculate the activities and activity coefficients of both components in this solution on the raoult’s law basis. the vapour pressures of the pure components at this temperature are: kpa p* a 105 = and kpa. p * m 5 73= . ( a x is the mole fraction in the liquid and a y the mole fraction in the vapour.)

attach the statements so i can answer : )

so easy. just google the electromagnetic waves and it’ll pop up.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia