I will give brainliest. Which one of the choices below is the best definition of a force? A. a push or a pull on an object

B. the position of an object above some zero point

C. an object in motion with a certain amount of energy

D. the tendency of an object to remain in its present state of motion

A. A push or pull on an object.

Explanation:

A force is a push or pull upon an object, which comes from the object's interaction with another object.

"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"