Question

300ml of oxygen gas at 10°c qre heated to 10°c . what is tge new volume if pressure remains constant.

Answer 1

The question is typed incorrectly.

The correct question should be

300ml of oxygen gas at -10°c are heated to 10°c . What is the new volume if pressure remains constant?

Answer: -

323 mL

Explanation: -

The pressure is constant.

Initial Volume V 1 = 300 mL

Initial temperature T 1 = - 10 °C + 273 = 263 K

Final Temperature T 2 = 10 °C + 273 = 283 K

We know that at constant pressure, the volume of a gas is directly proportional to the temperature of a gas according to Charles Law.

The equation for Charles Law is

$\frac{V1}{T1}$ = $\frac{V2}{T2}$

Final volume V 2 = $\frac{V1T2}{T1}$

= $\frac{300 mL x 283 K}{263 K}$

= 322.81 mL

= 323 mL correct to 3 significant figures.

Answer 2

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323 ml is the new Volume