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A sample of O₂ gas occupies 257 ml at 20°C and 1.20 atm. What is the volume?

User Scott Wolf
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1 Answer

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Final answer:

To find the final volume of oxygen gas at a different temperature and the same pressure, we can use the combined gas law equation. The final volume is calculated to be 21.59 mL.

Step-by-step explanation:

To solve this problem, we can use the combined gas law equation, which relates the initial and final volumes, pressures, and temperatures of a gas:

V₁ / T₁ = V₂ / T₂

For this problem, we are given:

First, let's convert the temperatures to Kelvin by adding 273:

Next, let's plug in the values into the equation and solve for V₂:

(32.2 mL) / (303 K) = V₂ / (203 K)

V₂ = (32.2 mL) * (203 K) / (303 K) = 21.59 mL (rounded to two decimal places)

User Isura Amarasinghe
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