Step-by-step explanation:
To calculate the heat required for a substance, we need to know the specific heat capacity and the change in temperature. However, you mentioned that the substance is saturated water, which means it is already in its boiling point and any additional heat input would cause a phase change rather than a change in temperature.
To determine the heat required for the phase change from saturated water to steam, we need to use the concept of latent heat. The latent heat of vaporization is the amount of heat required to convert 1 kg of a substance from the liquid phase to the vapor phase without a change in temperature.
For water, the latent heat of vaporization is approximately 2260 kilojoules per kilogram (kJ/kg).
Therefore, the heat required to convert 1 kg of saturated water to steam at 100 degrees Celsius is 2260 kJ.
Please note that if you intended to calculate the heat required to raise the temperature of water from a lower temperature to 100 degrees Celsius, we would need the specific heat capacity of water.