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The vapor pressure of butane at 0 °C is 1 atm. A 0.100 mol sample of liquid butane at 0 °C is introdStates of Matter Chemistry Question

Question

The vapor pressure of butane at 0 °C is 1 atm. A 0.100 mol sample of liquid butane at 0 °C is introduced into an evacuated, well-insulated 2.25 L container. Which statements correctly describe the system after it reaches equilibrium?
I. The temperature is lower than 0 °C.
II. All of the butane is in the gas phase.

A.

I only

✓ Correct
B.

II only

C.

Both I and II

D.

Neither I nor II

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