What is an ideal gas, and what are its characteristics?

Answer 1

To behave as an ideal gas the particles must have zero volume and exert no forces on each other except when they collide elastically. No real gas behaves exactly like an ideal gas, but at low pressures most gases approximate the behaviour of an ideal gas.

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Answer 2

Olivia Askew

An ideal gas is a theoretical concept used in physics and chemistry to describe the behavior of gases under certain conditions. It is characterized by the following properties:

The gas particles are considered to be point masses with negligible volume.
The particles are in constant, random motion.
Collisions between particles and the container walls are perfectly elastic.
There are no intermolecular forces between gas particles.
The volume occupied by the gas particles themselves is negligible compared to the volume of the container.

These assumptions allow for simplified mathematical models of gas behavior, such as the ideal gas law, which relates pressure, volume, temperature, and the number of moles of gas. While no real gas perfectly follows these assumptions, the concept of an ideal gas is a useful tool for understanding and predicting the behavior of real gases under certain conditions.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.