In an endothermic reaction, heat is absorbed from the surroundings. how does this affect entropy? a. the particles in the surroundings move slower and have decreased entropy. b. the particles in the surroundings move faster and have decreased entropy. c. the entropy is not affected by this. d. the particles in the surroundings move faster and have increased entropy.

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Thus the entropy of the particles in the surroundings move slower and have decreased entropy.

Explanation: -

In an endothermic reaction, heat is absorbed from the surroundings.

So the particles in the surroundings lose energy to the system during an endothermic reaction.

Due to a loss in their kinetic energy, the particles move slower.

Thus the entropy of the particles in the surroundings move slower and have decreased entropy.