Based on the law of conservation of energy, which statement is correct? A. Energy is always being added to all parts of the Universe. B. Energy is often destroyed in some parts of the Universe. C. Energy in a closed system cannot change forms. D. Energy in an isolated system remains constant.
Answers
Answer:
D. Energy in an isolated system remains constant.
Explanation:
In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time.
Answer:
Option 'D' is the correct answer i.e 'Energy of an isolated system remains constant'
Explanation:
A) It tells that energy is continuously added to the universe. But, it's wrong because the energy of the universe is always constant neither added(created) nor subtracted(destroyed)
B) Energy cannot be created or destroyed but can only transform from one form to another.
C) Since, piston-cylinder arrangement can also be treated as closed system. But, there the heat supplied is converted to work or vice-versa.
D) Isolated system is a system which doesn't have any interaction with its surroundings at all. So, all the energy within the system remains in it only.
#SPJ2