40 answer a gas phase b liquid phase c solid phase

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40 . Answer: (a) gas phase (b) liquid phase (c) solid phase Strategy and Explanation: (a) The point at –70°C and 1 atm is just below and to the right of the solid/gas equilibrium line, so the phase present will be the gas phase. (b) The point at –40°C and 15.5 atm is to the right of the solid/liquid equilibrium line and above the liquid/gas equilibrium line, so the phase present will be the liquid phase. (c) The point at –80°C and 4.7 atm is below and to the left of the solid/liquid equilibrium line and above the solid/gas equilibrium line, so the phase present will be the solid phase.
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