Question

At-57 °C and 1 atm, carbon dioxide is in which phase? View Available Hint(s) Phase diagrams for water (Figure 1)and carbon dioxide (Figure 2)are given here for your reference O gas O liquid O solid O supercritical fluid solid-liquid equilibrium O liquid-gas equilibriunm O solid-gas equilibrium O solid-liquid-gas equilibrium Submit incorrect; Try Again; 3 attempts remaining On the diagram for carbon dioxide, fnd 1 atm on the pressure axis and-57 degrees on the temperature axis. Find where these values intersect, then read which phases are present. Figure 2 of 2 Part D Phase diagram for CO 73 At 10 C and 2 atm carbon dioxide is in the gas phase. From these conditions, how could the gaseous C02 be converted into liquid CO2? View Available Hint(s) Liquid Solid O O O O Increase the temperature. Decrease the temperature. Increase the pressure. Decroase the prossure. 5.2 Gas -78-57 0 31 Temperature (C) Submit

Answer 1

Answer:

Gas

Increase the pressure

Explanation:

Let's refer to the attached phase diagram for CO₂ (not to scale).

At -57 °C and 1 atm, carbon dioxide is in which phase?

If we look at the intersection between -57°C and 1 atm, we can see that CO₂ is in the gas phase.

At 10°C and 2 atm carbon dioxide is in the gas phase. From these conditions, how could the gaseous CO₂ be converted into liquid CO₂?

Since at 10°C and 2 atm carbon dioxide is below the triple point, the only way to convert it into liquid is by increasing the pressure (moving up in the vertical direction).