I will be super appreciate of any help Calculate how much heat is required to change 235 g of iodine at 25 degrees Celsius into vapor at 198 degrees Celsius (The melting point is 113.5° Celsius and the boiling point is 185.4°C

the answer you are looking for is d. there are no holes for blood to enter or leave the system. your welcome

answer: the potential energy decreases from 379 j to 243 j

explanation:

for the law of conservation of energy, the total energy in a system must be conserved. the total energy of the system is given by the sum of kinetic (k) and potential (u) energy:

e = k + u

the total energy is e=675 j, and this does not change.

initially, the kinetic energy is k=296 j, so the potential energy is

at the end, the kinetic energy is k=432 j, so the potential energy is

so, we see that the potential energy has decreased from 379 j to 243 j.