Question

Which of the following is NOT true about a closed system?

Energy can't enter the system but mass can.
Mass and energy can't enter or leave the system.
Initial energy equals final energy.
Energy is conserved.

Answer 1

Step-by-step explanation:

NOT true is the first statement :

energy can't enter the system by mass can.

it is a strange statement and wrong in itself.

as we all know, the famous equation

e = mc²

tells us : mass is also energy, just in a different form, and can be converted.

so, when mass enters, so does energy.

and that cannot be in a closed system.