In a pressure cooker, a lid is screwed tightly onto a pot so that the air pressure in the pot is increased. what effect, if any, will this have on the boiling point of water in the pot?

the boiling point will be raised.
the boiling point will be lowered.
the boiling point will be unaffected.
none of the above.

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

Which of the following describes a situation where competition between producers exists