A Sample Consisting of CO₂(g)and CO₂(s)at Equilibrium at -78°C and 1

question 33

Multiple Choice

A sample consisting of CO₂(g) and CO₂(s) at equilibrium at -78°C and 1 atm pressure is heated to -30°C and the pressure is increased to 8 atm.Based on the phase diagram below,what will happen?

• A)At equilibrium,only CO₂(g)will be present.
• B)All of the CO₂ will be converted to CO₂(l).
• C)At equilibrium,CO₂(g)and CO₂(l)will be present.
• D)The melting point of the CO₂(s)will decrease.
• E)None of these.

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