Which of the following would lead to the highest entropy gain in the surroundings? A. An endothermic reaction in a hot environment.

B. An exothermic reaction in a hot environment.

C. An endothermic reaction in a cold environment.

D. An exothermic reaction in a cold environment.

the product of the pressure and volume is also constant

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

answerleaving cheese out to get moldy;