complete the statements by writing the number from the graph. the substance is in the gas phase only in…
complete the statements by writing the number from the graph. the substance is in the gas phase only in region . the substance is in both the liquid and the solid phase in region . the substance is in only the liquid phase in region . the melting point is the temperature at region . the boiling point is the temperature at region . done
Answer
Explanation:
Step1: Identify gas - phase region
In a temperature - time graph for a substance, the gas phase is the region where the substance has completely vaporized and is only in the gaseous state. This occurs after the boiling point. So, the substance is in the gas phase only in region 5.
Step2: Identify solid - liquid phase region
The region where the substance is in both the liquid and solid phase is the melting region. During melting, the temperature remains constant. This is region 2.
Step3: Identify liquid - phase region
The region where the substance is only in the liquid phase is after melting and before boiling. This is region 3.
Step4: Identify melting - point region
The melting point is the temperature at which the substance changes from solid to liquid while the temperature remains constant. This is region 2.
Step5: Identify boiling - point region
The boiling point is the temperature at which the substance changes from liquid to gas while the temperature remains constant. This is region 4.
Answer:
The substance is in the gas phase only in region 5. The substance is in both the liquid and the solid phase in region 2. The substance is in only the liquid phase in region 3. The melting point is the temperature at region 2. The boiling point is the temperature at region 4.