<Dl> <Dd> E = E k i n + E p o t + U (\ displaystyle E = E ^ (\ mathrm (kin)) + E ^ (\ mathrm (pot)) + U) </Dd> </Dl> <Dd> E = E k i n + E p o t + U (\ displaystyle E = E ^ (\ mathrm (kin)) + E ^ (\ mathrm (pot)) + U) </Dd> <P> where E k i n (\ displaystyle E ^ (\ mathrm (kin))) and E p o t (\ displaystyle E ^ (\ mathrm (pot))) denote respectively the total kinetic energy and the total potential energy of the component closed homogeneous system, and U (\ displaystyle U) denotes its internal energy . </P> <P> Potential energy can be exchanged with the surroundings of the system when the surroundings impose a force field, such as gravitational or electromagnetic, on the system . </P>

Which statement is mostly related to the first law of thermodynamics