Answer :
To solve this question, we need to understand the relationship between the boiling point and the condensation point of a substance.
When a substance boils, it changes from a liquid to a gas at its boiling point. Conversely, when a substance condenses, it changes from a gas to a liquid at its condensation point. For a given substance, the boiling point and condensation point are the same temperature, just viewed from different processes (boiling is heating, while condensation is cooling).
In this case, we are told that the boiling point of the substance is 89 °C. Therefore, the condensation point must also be 89 °C since they are the same temperature.
Thus, the correct answer is:
89 °C
When a substance boils, it changes from a liquid to a gas at its boiling point. Conversely, when a substance condenses, it changes from a gas to a liquid at its condensation point. For a given substance, the boiling point and condensation point are the same temperature, just viewed from different processes (boiling is heating, while condensation is cooling).
In this case, we are told that the boiling point of the substance is 89 °C. Therefore, the condensation point must also be 89 °C since they are the same temperature.
Thus, the correct answer is:
89 °C
