Using the phase diagram for CO2, what phase is carbon dioxide in at -20°C
and 1 atm pressure?
O
A. It is in the solid phase
O
B. It is in the gas phase.
O
C. It is in the liquid phase.
O
D. It is at its boiling point.
PREVIOUS

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation:

Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?

The element chlorine has two stable isotopes, chlorine-35 with a mass of 34.97 amu and chlorine-37 with a mass of 36.95 amu. from the atomic weight of cl = 35.45 one can conclude that: