Question

Use the phase diagram of Substance X below to find the melting point of X when the pressure above the solid is 0.43 atm. solid pressure (atm) liquid gas temperature (K) Note: your answer must be within 12.5 °C of the exact answer to be graded correct. X 5 ?

Answer 1

Following is the - complete : Answer -&- Explanation: for the given :Question: in.....typed format...

$\Rightarrow$Answer:

Melting point of 'X': = - 165.15 ^oC, ( approximately )

$\Rightarrow$Explanation:

Following is the complete: Explanation: for the above: Answer.

• Step - 1:

As we know: the melting point: is a temperature: at which; a substance/ compound: from solid phase: turns into liquid phase.

• Step - 2:

​​​​​​​As we can see: from the given graph: of pressure ( atm ) vs. temperature ( K ): we will get the following information ( approximate. ); i.e.

$\Rightarrow$Temperature at which 'X': from solid phase: turns into liquid: at pressure = 0.43 atm; is approximately:

T = 108.0 K ( Kelvin ); approximately...

$\Rightarrow$ Thus, melting point: of 'X' : T_mp = 108.0 K =  ( 108.0 - 273.15 ) = -165.15 ^oC  ( approximate )

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