How would you describe a gas on the molecular level?
The kinetic molecular theory of gases describes this state of matter as composed of tiny particles in constant motion with a lot of distance between the particles. Because most of the volume occupied by a gas is empty space, a gas has a low density and can expand or contract under the appropriate influence.
What do molecules look like in a gas?
Particles in a: gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.
What are the molecular characteristics of gases?
Gases have three characteristic properties: (1) they are easy to compress, (2) they expand to fill their containers, and (3) they occupy far more space than the liquids or solids from which they form.
What is the molecular activity of a gas?
For gases, the activity is the effective partial pressure, and is usually referred to as fugacity. The difference between activity and other measures of composition arises because molecules in non-ideal gases or solutions interact with each other, either to attract or to repel each other.
What shape is a gas?
no definite shape
Liquids have a definite volume, but take the shape of the container. Gases have no definite shape or volume.
What are 5 characteristics of gas?
What Are Five Properties of Gases?
- Low Density. Gases contain scattered molecules that are dispersed across a given volume and are therefore less dense than in their solid or liquid states.
- Indefinite Shape or Volume. Gases have no definite shape or volume.
- Compressibility and Expandability.
- Diffusivity.
- Pressure.
How can you describe a gas?
Gas is a state of matter that has no fixed shape and no fixed volume. The particles move very fast and collide into one another, causing them to diffuse, or spread out, until they are evenly distributed throughout the volume of the container.
Does gas have shape?
A gas has neither a definite shape nor a definite volume. Like liquids, gases are fluids. The particles in a gas can move around one another freely.
Does gas have a definite shape?
Three states of matter exist – solid, liquid, and gas. Solids have a definite shape and volume. Liquids have a definite volume, but take the shape of the container. Gases have no definite shape or volume.
What is the largest molecule ever?
PG5 is the largest molecule in the world, until scientists synthesize a new one. It is big as some viruses, and has a diameter of 10 nanometres and a mass equal to 200 million hydrogen atoms.
What is the longest molecule?
Titin is the largest protein molecule ever discovered. Titin is the short name for an extremely massive protein molecule. The full-length scientific name of this protein molecule contains 189,819 characters and is considered (by some) as the longest word in not just English, but any language.
What are the kinds of molecules?
The Molecules of Life. Crucial to the carbon-based life on the Earth are several types of biologically-essential molecules. The basic types of molecules are carbohydrates, lipids, proteins and nucleic acids.
What is the motion of molecules?
Molecular motion is defined as the movement of constituent particles or molecules in a certain direction. The molecular motions are affected by heat and temperature. This is because the temperature is the measurement of the average kinetic energy of the molecules and represents the motion of molecules.