An ideal engine may be thought of as a device operating in reversible cycles between two heat reservoirs, one at a higher temperature than the other. In each cycle, the engine takes a certain amount of heat from the higher temperature reservoir R1. A fraction of this energy is used by the engine to do work, while the rest of the energy is transferred to the lower temperature reservoir R2.
Which statement pertaining to entropy is true?
A) The entropy of the reservoir R1 increases.
B) The entropy of the reservoir R2 increases.
C) The entropy of the engine increases after each complete cycle.
D) The entropy of the engine decreases after each complete cycle.

Neutrons are placed in a magnetic field with magnitude 2.30 t. part a part complete what is the energy difference between the states with the nuclear spin angular momentum components parallel and antiparallel to the field? δe δ e = 2.77×10−7 ev previous answers correct part b part complete which state is lower in energy: the one with its spin component parallel to the field or the one with its spin component antiparallel to the field? which state is lower in energy: the one with its spin component parallel to the field or the one with its spin component antiparallel to the field? parallel antiparallel previous answers correct part c part complete how do your results compare with the energy states for a proton in the same field (δe=4.05×10−7ev)? how do your results compare with the energy states for a proton in the same field this result is smaller than but comparable to that found in the example for protons. this result is greater than but comparable to that found in the example for protons. previous answers correct part d the neutrons can make transitions from one of these states to the other by emitting or absorbing a photon with energy equal to the energy difference of the two states. find the frequency of such a photon. f f = mhz previous answersrequest answer incorrect; try again; 5 attempts remaining

Ln finding the density of liquid why is the method of using a density bottle more accurate than the one of using a measuring cylinder

Why, on the molecular level, does changing the amount of baking soda or vinegar affect the amount of carbon dioxide gas produced?