Question

Carbon Dioxide becomes a supercritical fluid at temperatures above 31.1 °C (88 °F)

a true
b false

Answer 1

Carbon dioxide becomes a supercritical fluid at temperatures above 31.1 °C (88 °F). Hence the statement is true

Step-by-step explanation:

Carbon dioxide does indeed become a supercritical fluid at temperatures above 31.1 °C (88 °F).

In a phase diagram, the supercritical fluid phase is found above the critical temperature. This is a state where the substance has properties of both a liquid and a gas, exhibiting density similar to a liquid but lacking distinct liquid and gas phases.

For example, carbon dioxide has a critical temperature of 31.1 °C and a critical pressure of 72.79 atm. Above this temperature, carbon dioxide will exist as a supercritical fluid rather than as separate liquid and gaseous phases.

Hence the statement is true