True or false: if the stirling engine increases the entropy of the universe when the cycle is run clockwise, it will decrease the entropy of the universe when it is run counterclockwise as a heat pump.

False.

Explanation:

The given statement is false.

The entropy of the universe can never be negative. As we all are aware that entropy ids the measure of "randomness" of a system. Change in entropy would mean increase in randomness.

Zero entropy mean means the system is in utmost order. And positive entropy  a system with some amount of disorder. Whereas negative entropy makes no sense as there can be no system with more than perfect state.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

part 1: which substance has a higher solubility?

a

smallest amount left undissolved atall temps in table shown most has dissolved high sol'by