The heat of evaporation of water at 100 c and 1 atm is 2261 j/g. (the density of water vapor at 100 c and 1 atm pressure is 0.597 kg=m3) (a) what percentage of that energy is used as work done by the vapor? (b) what is the internal energy change for the evaporation of water?

Will you chech and finish these for me, because i am stumped with them.

Will give brainliest! which statement best describes the difference between strong nuclear forces and weak nuclear forces? weak nuclear forces are involved when certain types of atoms break down. strong nuclear forces are responsible for holding atoms' nucleus together. weak nuclear forces hold bonds between atoms together. strong nuclear forces hold together the nucleus of an atom. strong nuclear bonds prevent atoms from falling apart. weak nuclear bonds prevent compounds from falling apart. strong nuclear forces are involved in breaking electrons from their shells. weak nuclear forces hold protons in the nucleus.

Atomic nuclei of almost all elements consist of