Medical instruments are sterilized at a high temperature in an autoclave, which is essentially a pressure cooker that heats the instruments in water under a pressure greater than one atmosphere. Why is the water in an autoclave able to reach a very high temperature, while water in an open pot can only be heated to 100 C? O The boiling point of water increases as the pressure increases. pressure increases. O The boiling point of water remains constant as the The boiling point of water decreases as the pressure increases