Question

The energy of an isolated system

a. is always decreasing

b. is always constant

c. is always increasing

d. none of the above

Answer 1

There is no mass and energy interaction across the system border in an isolated system, implying that there is no contact between the system and its surroundings. As a result, the isolated system's mass and energy are constant. As a result, the energy of a closed system is always constant.