Chemistry

Question Analysis
This question evaluates the understanding of phase changes and the significance of the boiling point.

Key Concept Explanation
The boiling point is the temperature at which a liquid turns into a gas at a given pressure. Above the boiling point, the substance exists as a gas.

Step-by-step Solution
1. Identify the boiling point of the substance: 70°C at 1 atm.
2. Determine the given conditions: 80°C and 1 atm.
3. Compare the given temperature (80°C) with the boiling point (70°C).
4. Since 80°C is above the boiling point, the substance...