Pressure in Liquids and Ideal Gases Flashcards

1
Q

Pressure at a point in a gas or liquid which is at rest:

A

Acts equally in all directions

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2
Q

Why do molecules in a gas exert pressure on the walls of the container
How does temperature increase pressure

A

The molecules in the gas have a random motion and when they collide with the walls of the container they exert a force and hence a pressure
As temperature increases, the particles gain more kinetic energy and move faster (the average kinetic energy increases), colliding with the walls of the container more frequently

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2
Q

Pressure is proportional to

A

Temperature given the volume is constant

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3
Q

Absolute zero is at
Why

A

-273C
The particles have no kinetic energy

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4
Q

Increase in temp

A

Increase in speed

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5
Q

Kelvin temperature of gas is directly proportional to

A

Average kinetic energy of its molecules

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6
Q

At a constant temp, pressure is

A

inversely proportional to volume

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7
Q

At a constant volume, pressure is

A

directly proportional to temperature IN KELVIN

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