Temperature

• How Do Molarity and Molality Depend on Temperature?
  Molarity usually falls as a solution warms because its volume expands; molality stays constant if the masses of solute and solvent remain unchanged.
• Why Does Water Feel Cooler Than Air at the Same Temperature?
  Water usually feels colder than air at the same temperature because it removes heat from skin faster; conductivity, heat capacity, and evaporation explain why.