Question

If I have 2.4 moles of gas held at a temperature of 97* Cand in a container with a volume of 45 liters, what is the pressure of the gas? (In atm)

Answer 1

Step 1

The gas is considered to be ideal, so it will be applied:

P x V = n x R x T (1)

P = pressure

V = volume

n = number of moles

R = gas constant

T = absolute temperature

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Step 2

Information provided:

P = unknown

V = 45 L

n = 2.4 moles

R = 0.082 atm L/mol K

T = 97°C + 273 = 370 K

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Step 3

P is cleared from (1):

P = n x R x T/V = (2.4 moles x 0.082 atm L/mol K x 370 K)/45 L = 1.62 atm

Answer: P = 1.62 atm