A 275-L Container Filled with CO₂ Gas at 25°C and 225

question 64

Multiple Choice

A 2.75-L container filled with CO₂ gas at 25°C and 225 kPa pressure springs a leak.When the container is re-sealed,the pressure is 185 kPa and the temperature is 10°C.How many moles of gas were lost?

• A)0.0335 mol
• B)0.728 mol
• C)0.882 mol
• D)3.39 mol

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Definitions:

Iris

Muscular ring that surrounds the pupil and regulates the passage of light through this opening.

Pupil

Opening in the center of the iris of the vertebrate eye.

Retina

The light-sensitive layer of tissue at the back of the inner eye, which converts light images into electrical signals sent to the brain.

Lens

An optical device capable of converging or diverging light, or a transparent structure in the eye which focuses light onto the retina to facilitate vision.