Second law states?

Second law states?

• A. From low to high temperature objects.
• B. Only when chemical reactions occur.
• C. From high to low temperature objects.
• D. Only in a vacuum.

Answer: (C)

Heat tends to flow from hotter objects to cooler ones. That directional bias is what the second law describes: in any natural process with a temperature difference, thermal energy moves from high temperature to low temperature (until they reach equilibrium), and the overall disorder (entropy) of the system tends to increase. This means heat doesn’t spontaneously flow from cold to hot, and it doesn’t require chemical reactions or a vacuum to occur. Conduction, convection, and radiation all transfer heat toward cooler bodies. So the statement that heat flows from high to low temperature objects best captures the law.

Heat tends to flow from hotter objects to cooler ones. That directional bias is what the second law describes: in any natural process with a temperature difference, thermal energy moves from high temperature to low temperature (until they reach equilibrium), and the overall disorder (entropy) of the system tends to increase. This means heat doesn’t spontaneously flow from cold to hot, and it doesn’t require chemical reactions or a vacuum to occur. Conduction, convection, and radiation all transfer heat toward cooler bodies. So the statement that heat flows from high to low temperature objects best captures the law.