If 5.50 liters of oxygen at STP is heated to 512 C, what will be the new
volume of gas if the pressure is also increased to 1.75 atm? *

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.

The answer is 4 i don't know if its right let me see.

What are the statements?