MCQ: Choose the correct answer(s)

1. A plateau is:
• a vertical segment a horizontal segment a diagonal segment

2. The heating curve of pure water has a plateau at:
• 25 °C 75 °C 100 °C

3. The cooling curve of pure water has a plateau at:
• 25 °C 0 °C -100 °C

4. The heating curve of a pure substance like pure water:
• has one or more plateaus
• has no plateau

5. During the boiling of salt water, the temperature:
• increases rapidly
• increases slowly
• does not change

6. The heating curve of salt water (a mixture of water and salt):
• has one or more plateaus
• has no plateau

📊 RESULT: