A sample of nitrogen at a pressure of 1.00 atm and a temperature of 65.0 K is heated at constant pressure to a temperature of 88.8 K. Which of the following are true?

Question

Choose all that apply

The sample is initially a liquid.

The sample is initially a solid.

The final state of the substance is a gas.

The liquid initially present will solidify.

One or more phase changes will occur.

Answer 1

Referring to a phase diagram from N2, one can see that at 1 atmosphere pressure and 65K, the sample is a liquid. At 88.8K, and 1 atm, the sample is a gas.

So, correct answers are...

The sample is initially a liquid

The final state of the substance is a gas

One or more phase changes will occur