Using the phase diagram for CO2, what phase is carbon dioxide in at -70°C
and 1 atm pressure?

A. It is in the liquid phase.

B. It is in the solid phase.

C. It is at its melting point.

D. It is in the gas phase.

Using the phase diagram for CO2 what phase is carbon dioxide in at 70C and 1 atm pressure A It is in the liquid phase B It is in the solid phase C It is at its class=

Respuesta :

Answer:

A

Explanation:

The Phase Diagram of Carbon Dioxide

At 1 atm, therefore, solid CO2 sublimes directly to the vapor while maintaining a temperature of −78.5°C, the normal sublimation temperature. Solid CO2 is generally known as dry ice because it is a cold solid with no liquid phase observed when it is warmed.

its a gas phase because... it is