Calculate the amount of energy that is absorbed by 75 g.. water
from 22.5 °c to 37.8 °c. the specific heat of water is 1 cal/ g x °c

Ithinks its false. tell me if im wrong

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.