Using the phase diagram of carbon dioxide, describe the following conditions as stated below. 1. What happens when the follovving changes are made in a CO2 sample, which initially records at 1 atm. and -60°C?  (a) Pressure increases at a constant temperature to 80 atm. (b) Temperature increases from -60°C to -18°C at constant 80 atm.pressure.

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Using the phase diagram of carbon dioxide, describe the following conditions as stated below.

1. What happens when the follovving changes are made in a CO2 sample, which initially records at 1 atm. and -60°C? 

(a) Pressure increases at a constant temperature to 80 atm.

(b) Temperature increases from -60°C to -18°C at constant 80 atm.pressure.

140
120
Super-
critical
100
fluid
CO,(s)
CO,(1)
80
Critical point
30.98°C,
60
72.79 atm
40
20
CO2(g)
Triple point
- 56.57°C, 5.11 atm
-80
-60
-40
- 20
20
40
Temperature (C)
Pressure (atm)
Transcribed Image Text:140 120 Super- critical 100 fluid CO,(s) CO,(1) 80 Critical point 30.98°C, 60 72.79 atm 40 20 CO2(g) Triple point - 56.57°C, 5.11 atm -80 -60 -40 - 20 20 40 Temperature (C) Pressure (atm)
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