of the substance at 50 oC and at pressure just slightly above 1 atm?  4.3 Give the estimate critical temperature ( oC) and pressure (atm) of the unknown substance.  4.4 What is the normal boiling point (oC) of this

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4.1 How will the melting point of the substance
change if the pressure is increased above 1
atm? 
4.2 What will be the phase (solid, liquid or gas)
of the substance at 50 oC and at pressure
just slightly above 1 atm? 
4.3 Give the estimate critical temperature (
oC)
and pressure (atm) of the unknown
substance. 
4.4 What is the normal boiling point (oC) of this
substance?

unknown substance:
P (atm)
1
10 20
30
40 50 60 70
T (deg. Celsius)
Transcribed Image Text:unknown substance: P (atm) 1 10 20 30 40 50 60 70 T (deg. Celsius)
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