Answer: Delta U = 30 - 80; -50 jules
Explanation:
The system is losing 80 J, but it is also gaining 30 J because the surroundings are doing work on it. So the net change in energy is -50 J
The second and third laws of thermodynamics states that absolute zero cannot be reached. The correct option among all the options that are given in the question is the third option or option "C". Both the laws actually deal with the relations that exist between heat and other forms of energy. I hope the answer helps you.
<h2>
Answer: A</h2>
Explanation because the distance covered is equal time intervals is the same or equal.
Answer:
Positive
Explanation:
Protons have positive charges
Electrons have negative charges and
Neutrons have neutral charges.
