1.

From the given P-T graph of CO_2you may concluded that it will be

Answer»

Vapour at `-76^@C` under 1 atm
Liquid at `-20^@C and ` 56 atm
Solid at - `60^@C and 70 ` atm
COEXISTING in three phases at `-56.6^@Cand 5.11` atm

Answer :A::B::C::D


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