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Chapter 10: Q10.4-57 E (page 589)

From the phase diagram for carbon dioxide determine the state of CO2 at:

\(\begin{aligned}{\left( {\rm{a}} \right){\rm{ 20 ^\circ C and 1000 kPa}}}\\{\left( {\rm{b}} \right){\rm{ 10 ^\circ C and 2000 kPa}}}\\{\left( {\rm{c}} \right){\rm{ 10 ^\circ C and 100 kPa}}}\\{\left( {\rm{d}} \right){\rm{ - 40 ^\circ C and 500 kPa}}}\\{\left( {\rm{e}} \right){\rm{ - 80 ^\circ C and 1500 kPa}}}\\{\left( {\rm{f}} \right){\rm{ - 80 ^\circ C and 10 kPa}}}\end{aligned}\)

Short Answer

Expert verified

The state of \(C{O_2}\) are:

(a)Liquid

b) Solid

(c) Gas

d) Gas

(e) Gas

(f) Gas

Step by step solution

01

Phase Diagram

The phase diagram for \(C{O_2}\) is shown below

02

Determine State of Carbon-di-oxide (CO2)

As per the phase diagram the following results can be concluded

(a) At \({\rm{ 20 ^\circ C and 1000 kPa}}\)-the state of \(C{O_2}\)is Liquid

b) At \({\rm{ 10 ^\circ C and 2000 kPa}}\)-the state of \(C{O_2}\)is Solid

(c) At\({\rm{10 ^\circ C and 100 kPa}}\)-the state of \(C{O_2}\)is Gas

d) At\({\rm{ - 40 ^\circ C and 500 kPa}}\)-the state of \(C{O_2}\)is Gas

(e) At\({\rm{ - 80 ^\circ C and 1500 kPa}}\)-the state of \(C{O_2}\)is Gas

(f) At\({\rm{ - 80 ^\circ C and 10 kPa}}\)-the state of \(C{O_2}\)is Gas

Hence the state of \(C{O_2}\) are Liquid, Solid, Gas, Gas, Gas, Gas

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