According to Andrews isothermals at what temperature the carbondioxide gas starts to condense at 73…

According to Andrews isothermals at what temperature the carbondioxide gas starts to condense at 73 atmosphere?
  1. $21 \cdot 5^{\circ} \mathrm{C}$
  2. $30 \cdot 98^{\circ} \mathrm{C}$
  3. $13 \cdot 1^{\circ} \mathrm{C}$
  4. $48 \cdot 1^{\circ} \mathrm{C}$

Solution

For $\mathrm{CO}_{2}$, critical pressure $\left(\mathrm{P}_{\mathrm{C}}\right)=73$ atm critical temperature $\left(\mathrm{T}_{\mathrm{C}}\right)=30.98{ }^{\circ} \mathrm{C}$,

Asked in: MHT CET 2020 (12 Oct Shift 1)

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