Question

the flow of energy into and out of a system is called​

Answer 1

Answer:

When energy flows out of a system, it must all flow into the surroundings.

When energy flows out of a system, ΔEsystem is negative.

When energy flows into the surroundings, ΔEsurroundings is positive.

Therefore,

─ ΔEsystem= ΔEsurroundings