Question

What is critical temperature what is its value for co2

Answer 1

More specifically, it behaves as a supercritical fluid above its critical temperature (304.25 K, 31.10 °C, 87.98 °F) and critical pressure (72.9 atm, 7.39 MPa, 1,071 psi, 73.9 bar), expanding to fill its container like a gas but with a density like that of a liquid.