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States of Matter quick check

A quick check of 3 questions. After you submit, each question shows the right answer and why.

3 of 8 questions, Advanced level. Aimed at the Advanced level, your current depth. Questions you have not answered yet come first.

Show all 8 questions

ScientistQuestion 1 of 3

Chlorine melts at −101.5 °C and boils at −34.04 °C. What state is chlorine in at −60 °C?

AdvancedQuestion 2 of 3

Bromine is a liquid and iodine a solid at room temperature, although both are halogens like chlorine (a gas). Explain this in terms of intermolecular forces and kinetic energy.

ExpertQuestion 3 of 3

Water's critical point is about 647 K and 220.64 bar. What happens to the distinction between liquid and gas beyond the critical point, and what is the resulting phase called?