Which statement is true about energy changes? A.
Energy cannot be created or destroyed.
B.
Energy can be created but not destroyed.
C.
Energy can be destroyed but not created.
D.
Energy can be created and destroyed.

Using the law of physics, or the conservation of energy, your answer is:

A. Energy cannot be created or destroyed.

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

i think it is true since you can test the answer and can use observations to complete it.