When 5.00 mol of benzene is vaporized at a constant pressure of 1.00 atm and at its normal boiling point of 80.1°c, 169.5 kj are absorbed and pδv for the vaporization process is equal to 14.5 kj.
what is the change of internal energy?
what is the change of enthalpy?
is the change in entropy positive or negative for this process?
if the pressure would be only ½ atm, what are the changes of internal energy and enthalpy during vaporization (approximately)?
how much energy is absorbed?
write the definition of the gibbs free energy.
at the lower pressure, will the boiling point be higher or lower.

the increase of protons   hope this

2b2t

explanation:

2b2t

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o