What is the pressure exerted by 1.0 mol of a gas with temperature of 20 c and a volume of 7.5 l?

We have to assume the gas behaves similar to an ideal gas and we can use the ideal gas law equation

PV = nRT

Where

P - pressure

V - volume - 7.5 L

n - number of moles - 1.0 mol

R - universal gas constant - 0.0821 L.atm/mol.K

T - temperature in kelvin

20 degrees celcius + 273 = 293 K

Substituting the values in the equation

P x 7.5 L = 1.0 mol x 0.0821 L.atm/mol.K x 293 K

P = 3.2 atm

The pressure exerted is 3.2 atm

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