Dr. Wong's assistant made the observations below while heating a sample of solid hydrogen. Using the data and observations in th
e table below, create a heating curve for hydrogen that Dr. Wong can reference during his laboratory testing. Be sure to include and label the following items in your heating curve:
2 answers:
Answer:
On the attached picture
Explanation:
Hello,
The required graph is attached wherein you will find the change from solid to gas for hydrogen. At first, it is seen that the hydrogen's temperature started at -263°C and it was stepwise increased until -259°C at which it starts the phase transition from solid to liquid, therefore such temperature is also the melting point and remains constant until the completion of the melting process. Next, after all the solid is melted an other change in the temperature is shown from -259°C to -253°C at which the phase transition from liquid to gas started; again the temperature matches with the boiling point and remains constant until all the liquid boils. Finally, the resulting gas is heated until -245°C at which the hydrogen will not change the state again under the specified conditions.
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