Final answer:
An increase in temperature does not result in an increase in relative humidity when the water vapor content remains constant.
Step-by-step explanation:
When we say humidity, we really mean relative humidity. Relative humidity tells us how much water vapor is in the air compared with the maximum possible. The amount of water vapor in the air depends on temperature. An increase in temperature does not result in an increase in relative humidity when the water vapor content remains constant.
This is because relative humidity is a ratio of the amount of water vapor in the air to the maximum amount it can hold at a given temperature. As temperature increases, the air can hold more water vapor, so the ratio (relative humidity) decreases.