if ice forms on the outside of a glass cup what would be the likly temp
Ice forms at 0C
To determine the likely temperature at which ice forms on the outside of a glass cup, we need to understand the concept of the dew point.
When the air is saturated with water vapor, the dew point is the temperature at which the air becomes saturated and can no longer hold all the water vapor. At this point, the excess water vapor condenses into liquid droplets or forms solid ice.
The temperature at which the dew point occurs depends on various factors, such as the relative humidity and the amount of water vapor present in the air. Typically, when ice forms on the outside of a glass cup, it indicates that the temperature of the cup is below or close to the dew point temperature of the surrounding air.
To determine the likely temperature, you could use a hygrometer to measure the relative humidity, as well as a thermometer to measure the room temperature. By comparing these readings, you can estimate the dew point temperature, which would give you an idea of the likely temperature at which ice forms on the outside of the glass cup.
Alternatively, you could also refer to weather data or consult weather forecasts, as they often provide information on the current or expected dew point temperature in your area.