Quick Answer: What Is The Most Important Factor In Determining The State Of A Substance?

What happens when a substance changes state?

The closeness, arrangement and motion of the particles in a substance change when it changes state.

When a substance is heated, its internal energy increases: the movement of its particles increases.

bonds between particles break when a substance melts or evaporates, or sublimes to form a gas from a solid..

What are the two factors which help in determining the state of matter?

Answer:Temperature ,pressure and intermolecular space. Explanation:Temperature ,pressure and intermolecular space between the molecules are the main factors that influence the molecular arrangement of matter .

How do we determine that liquid is a matter?

The liquid state of matter is an intermediate phase between solid and gas. … Liquids will flow and fill the lowest portion of a container, taking on the shape of the container but not changing in volume. The limited amount of space between particles means that liquids have only very limited compressibility.

What determines the state of matter of a substance at room temperature?

In Sections 1.3 and 2.5A3, we noted that the physical properites of a particular substance determine its state at room temperature. If both its normal melting point and its normal boiling point are below room temperature (20°C), the substance is a gas under normal conditions.

What is it called when a solid turns directly into a gas?

Phase Transition: Solid to Gas. Sublimation is the process of transformation directly from the solid phase to the gaseous phase, without passing through an intermediate liquid phase.

What is it called when matter changes state?

From Wikipedia, the free encyclopedia. A phase change is a change in the states of matter. For example, a solid may become a liquid. This phase change is called melting. When a solid changes into a gas, it is called sublimation.

How a gas can be liquefied?

In general, gases can be liquefied by one of three general methods: (1) by compressing the gas at temperatures less than its critical temperature; (2) by making the gas do some kind of work against an external force, causing the gas to lose energy and change to the liquid state; and (3) by making gas do work against …

What are the factors that determine the state of a substance?

Temperature and pressure determine the state of a substance. A change in temperature or pressure will result in the change of state of the substance.

What is the important factor which decide the state of matter?

The amount of energy in molecules of matter determines the state of matter. Matter can exist in one of several different states, including a gas, liquid, or solid state. These different states of matter have different properties, which are illustrated in the figure below.

What gives each state of matter its unique properties?

Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around. Liquid matter is made of more loosely packed particles. … Gaseous matter is composed of particles packed so loosely that it has neither a defined shape nor a defined volume.