At a temperature of 15 degrees C, a quantity of oxygen has a volume of 250 ml. If it's temperature is raised to 45 degrees C, what will it's volume be?

Question

Derrick Allen

Chemistry

31 August, 06:22

At a temperature of 15 degrees C, a quantity of oxygen has a volume of 250 ml. If it's temperature is raised to 45 degrees C, what will it's volume be?

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Answers (1)

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Heidi Arroyo · Answer 1

280 mL

Explanation:

Ideal gas law:

PV = nRT

Rearranging:

V / T = nR / P

At constant pressure:

V₁ / T₁ = V₂ / T₂

Substituting values:

250 / (15 + 273) = V / (45 + 273)

V = 276

Rounded to two significant figures, the volume will be 280 mL.

When using the ideal gas law, remember to always use absolute units for temperature, like Kelvin.