Calculating Volume Using Combined Gas Law
What is the initial volume of the oxygen gas sample at 331 K?
Given data: The volume of the oxygen gas sample at 385 K is 863.3 mL. Initial temperature: 331 K.
Answer:
The initial volume of the oxygen gas sample at 331 K was approximately 0.7427 L.
To find the initial volume of the oxygen gas sample at 331 K, we can use the combined gas law:
(P1 * V1) / T1 = (P2 * V2) / T2
Given that pressure (P1 and P2) is constant, we can simplify the equation to:
V1 = (V2 * T1) / T2
Substitute the values:
V1 = (0.8633 L * 331 K) / 385 K
V1 = 0.7427 L
Therefore, the initial volume of the oxygen gas sample at 331 K was approximately 0.7427 L.