Ideal gases 36-37 Flashcards Preview

Physics revision guide v1 > Ideal gases 36-37 > Flashcards

Flashcards in Ideal gases 36-37 Deck (16):
1

What is absolute zero?

Absolute zero is the lowest possible temperature, which is given by zero kelvin, written 0 k.

2

A change of 1k is a change of what in degree Celsius?

A change of 1*C.

3

How do you change from degrees Celsius into kelvin?

K = C + 273

4

What is Boyle's law?

At a constant temperature the pressure p and volume V of a gas are inversely proportional. pV = constant

5

What is an ideal gas?

A theoretical gas that obeys Boyle's law (and other laws) at all temperatures is called an ideal gas.

6

What is Charles'Law?

At a constant pressure, the volume V of a gas is directly proportional to its absolute temperature. V/T = constant

7

What is the Pressure law?

At a constant volume, the pressure p of a gas is directly proportional to its absolute temperature. p/T = constant

8

Draw a graph of volume vs temperature(k) for an ideal gas.

A image thumb
9

Draw the graph of pressure vs temperature(k) for an ideal gas.

A image thumb
10

What is the value of the molar gas constant R?

Its value is 8.31 j mol-1K-1

11

What is the ideal gas equation?

pV = nRT

12

How many particles does one mole of gas contain, and what is the name of this value?

 

6.02 x 1023 , this number is known as Avogadros constant and has the symbol NA.

13

What is the equation that lets us calculate the number of particles in a mass of gas?

N = nNA

- number of particles is equal to the number of moles mutplied by Avogadros constant.

14

What is the value of Boltzmann's constant?

1.38 x 10-23 JK-1

15

What is Boltzmann's constant K equivalent to?

It is equivalent to R/NA - you can think of Boltzmann's constant as the gas constant for one particle of gas, while R is the gas constant for one mole of gas.

16

What is the equation of state of an ideal gas?

pV = NKt