Power factor = R/Z = R/√(R² + X²) = 4/√(4² + 3²) = 4/5 = 0.8.

Power factor = R/Z = 5/√(5² + 5²) = 5/√50 = √2/2.

Power factor = R/Z = 5 / √(5² + 5²) = 5 / √50 = 0.707.

The power factor is cos(60°) = 0.5.

Power = Work / Time = 1200 J / 30 s = 40 W.

Power = Work / Time = 3000 J / 15 s = 200 W.

Pressure (P) = Force/Area = 100 N / 5 m² = 20 Pa.

Pressure = Force/Area = 200 N / 4 m² = 50 Pa.

Adsorption is a surface phenomenon where molecules adhere to the surface of a solid or liquid.

Gases have high compressibility due to the large spaces between particles, unlike solids and liquids which have definite shape and volume.

Gases are highly compressible due to the large spaces between particles, allowing them to occupy more volume when pressure is applied.

The primary component of natural gas is methane (CH4).

Phospholipids are the primary component of cell membranes, forming a bilayer.

Gases are highly compressible while liquids are not, due to the distance between particles in each state.

Solids have a fixed shape and volume due to closely packed particles, while liquids take the shape of their container but have a fixed volume.

The rate of adsorption increases with the surface area of the solid, as more surface provides more sites for gas molecules to adhere.

Proteins act as enzymes that catalyze biochemical reactions.

Proteins primarily function as enzymes that catalyze biochemical reactions.

Nitrogen makes up about 78% of the Earth's atmosphere, making it the primary gas.

Activated charcoal primarily adsorbs substances through physical adsorption due to its high surface area and porous structure.

Adsorption primarily involves physical attraction between the adsorbate and the surface of the adsorbent.

Adsorption of gases on solid surfaces primarily occurs due to Van der Waals forces, which are weak intermolecular forces that allow gas molecules to adhere to the surface.

Colloidal solutions are formed by the dispersion of fine particles in a medium, which is the process of dispersion.

Gases are highly compressible due to large intermolecular spaces between particles.

Halogens have high electronegativity due to their high ionization energy, which allows them to attract electrons effectively.

The presence of d-electrons allows transition metals to exhibit variable oxidation states.

Gases can be compressed more than liquids or solids because they have large intermolecular spaces.

Boron is primarily used in the production of glass and ceramics.

Polyethylene is primarily used in packaging due to its flexibility and durability.

Polystyrene is widely used in packaging materials due to its lightweight and cushioning properties.