Explanation

• An alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal, in a solid state.
• The components of an alloy are typically mixed when they are molten, and then solidified to form a uniform solid solution.

Explanation

• In the evaporation process, liquid molecules gain energy and move faster.
• It allowing them to escape from the surface of the liquid into the surrounding air.
• This occurs when the molecules have enough energy to overcome the intermolecular forces holding them to the surface.

Explanation

• Plasma is a state of matter where atoms or molecules are ionized, meaning they have lost or gained electrons, resulting in a collection of charged particles.
• Plasma is often referred to as the fourth state of matter.
• It is the lightest form of matter, as the particles are highly energetic and widely spaced.

Explanation

• Diamond is a crystalline solid that has a sharp melting point.
• Meaning it melts at a specific temperature (around 4000 K) with a minimal range.

Explanation

• Liquids have a lower mobility than gases.
• In a liquid, the molecules are close together and have a certain degree of attraction, which limits their ability to move freely.
• In contrast, gas molecules are widely spaced.
• It have little attraction, allowing them to move more freely and rapidly.

Explanation

• The initial temperature of a liquid does not affect its boiling point.
• The boiling point is the temperature at which a liquid changes state to a gas at a given pressure.
• It is a physical property of the substance itself.

Explanation

• One atmospheric pressure, also known as standard atmospheric pressure.
• It is defined as 101325 Pascals (Pa).
• This is the pressure exerted by the weight of the atmosphere at sea level.
• It is used as a standard unit of pressure.

Explanation

• The freezing point of a liquid can be affected by pressure.
• This is known as the "pressure melting point" effect.
• As pressure increases, the freezing point of a liquid can also increase.

Explanation

• Vapor pressure is the pressure exerted by the vapor of a liquid in equilibrium with its solid or liquid phase.
• As temperature increases, the molecules of a liquid gain kinetic energy and move more rapidly.
• Increasing the number of molecules that escape into the vapor phase, thereby increasing the vapor pressure.

Explanation