Answer:
Explanation:
Option c is incorrect i.e. Entropy of an isolated system must be conserved
The entropy of an isolated system always increases. This can be explained by considering the system is isolated so there is no exchange of mass i.e. entropy cannot decrease so it must either increase or remains constant. But due to the presence of spontaneity in the system, there is always an increase in mass unless the system is undergoing a reversible process in which each state change is in equilibrium condition.
Answer: Heat is produced
Explanation:
From the law of conservation of energy and mass, these cannot be created nor destroyed but can convert from one form to another. When fuel is burnt, heat is produced which changes into mechanical energy ( potential energy + kinetic energy). Thus, chemical energy of the fuel transforms to heat energy which transforms to mechanical energy. This shows that energy transformation has taken place.
Answer:
O to A and D to E are accelorating.
Explanation:
You can tell because the graphed points have positive slopes in these locations.
The speed of the proton is
Data;
- potential difference (A) = 3500V
- potential difference (B) = -1500V
<h3>Velocity of The Proton</h3>
The work done to move through a potential velocity 'v' is q
The potential difference 'v' is the difference between A and B
But the work is converted into kinetic energy of proton.
Let's substitute the values and solve for the velocity
The speed of the proton is
Learn more about work done on an electron here;
brainly.com/question/13673636