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The pressure above a pure sample of solid Substance X at -185. °C is lowered. At what pressure will the sample sublime? Use the phase diagram of X below to find your answer. 28 solid pressure (atm) L liquid gas 0- 0 100 200 300 temperature (K) Note: your answer must be within 1.75 atm of the exact answer to be graded correct. atm Х 5 ?

Use the phase diagram of Substance X below to find the temperature at which X turns to a gas, if the pressure above the solid is 1.3 atm. 16 solid pressure (atm) liquid gas 0. 200 400 temperature (K) Note: your answer must be within 25 °C of the exact answer to be graded correct. [ °C x ?

The temperature on a sample of pure X held at 5.3 atm and -220. °C is increased until the sample sublimes. The temperature is then held constant and the pressure is decreased by 3.5 atm. On the phase diagram below draw a path that shows this set of changes. 32 X 5 ? pressure (atm) 0 200 400 temperature (K)