Question

please explain..............​

Answer 1

Answer:

1.. Internal energy is defined as the energy associated with the random, disordered motion of molecules. It is separated in scale from the macroscopic ordered energy associated with moving objects; it refers to the invisible microscopic energy on the atomic and molecular scale.

2.Enthalpy is a property of a thermodynamic system, that is a convenient state function preferred in many measurements in chemical, biological, and physical systems at a constant pressure.

Explanation:

Nice Handwriting ☺☺✌

Answer 2

Answer:

Internal energy is the total energy contained in the system. It is the sum of potential and kinetic energy possessed by the system.

Enthalpy is defined as the sum of the internal energy of the system plus the product of the pressure of the gas in the system and its volume.

hope this helps you tq