You are doing a peer review of a science experiment. The paper claims that an increase of pressure requires a greater addition of thermal energy to change a liquid to a gas. Why is this true?

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.