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Three of the stales of matter that are known to exist are solid, liquid, and gas

ID: 489518 • Letter: T

Question

Three of the stales of matter that are known to exist are solid, liquid, and gas The equilibrium among these states is dynamic in nature, and one can graphically represent the equilibrium of these states in the form of a phase diagram Click on the image below to explore this simulation, which will allow you to change parameters such as pressure and temperature, to see how the state in which the substance exists changes When you click the simulation link, you may be asked whether to run. open, or save the file Choose run or open it. By selecting the Phase Changes tab. this simulation allows for the temperature to be adjusted by using the 'Heat Control" option and pressure of a selected substance View its stale m the phase diagram to the right Add excess molecules by pushing the pump handle Part A Go to the Solid. Liquid. Gas tab. You can then select one of four substances Now. use the stove to increase or decrease the temperature of the container at 1 and then find the state

Explanation / Answer

In it's natural state, oxygen is a gas as it's boiling point is -183 degrees centigrade. To be a liquid, oxygen needs to be between -183 and -218.8 degrees centigrade. Less than -218.8 degrees centigrade, oxygen exists as a solid.

Hence at 150K oxygen exists as a gas.

H2O at 390K --------- H2O exists as liquid from 273K-373K , above this temperature at 1atm pressure it exists in gaseous state.

O2 at 60K----------- It exists as a liquid.

N2 at 40K----------- it exists as liquid at this temperature at 1atm pressure.

H2O at 120K-------- It exists as solid at this temperature.

Argon at 60K ------ It exists as solid at this temperature. because the melting point of Ar is -1890C that is 84K

Argon at 32K ------It exists as solid at this temperature. because the melting point of Ar is -1890C that is 84K

Neon at 29K -------248.6 °C is the melting point of Neon, hence at 29K it exists as liquid.

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