What is the ideal gas equation linking pressure (p), volume (V), number of moles (n), gas constant (R), and temperature (T)?

pV = nRT


p = pressure (Pa)

V = volume (m3)

n = number of moles (mol)

R = gas constant (J K-1 mol-1)

T = temperature (K)

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What is the gas constant R?

R = 8.31 J K-1 mol-1

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What is the formula linking pressure (p), volume (V), number of particles (N), Boltzmann's constant (k), and temperature (T)?

pV = NkT


p = pressure (Pa)

V = volume (m3)

N = number of particles

k = Boltzmann's constant = 1.38 x 10-23 (J K-1)

T = temperature (K)

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What is Boltzmann's constant?

Boltzmann's constant is a ratio of the ideal gas constant to Avogadro's constant.


k = NAR = 6.02 x 10238.31 = 1.38 x 10−23 J K−1 mol−1

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What is the relationship between pressure and temperature of a gas at constant volume?

Pressure is directly proportional to temperature.

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