Compare how entropy changes for the following two systems:

system a: two gases mix when the valve separating two containers is opened.

system b: a solid powder decomposes to form a solid product and a gas product.

Explanation:

Entropy is defined as the amount of randomness present within the molecules of a substance.

So, when in system A, two gases mix together then it means there will be increase in number of molecules. As a result, there will be increase in number of collisions which will lead to increase in randomness of molecules.In system B, a solid powder is decomposing to given a solid product and a gas.

As gas molecules are held by weak forces so, they will rapidly move from one place to another. Hence, there will be increase in randomness of the molecules.

As a result, there will also be increase in entropy of system B.

A. Entropy increases

B. entropy increases

Explanation:

Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.

A. Two gases mix when the valve separating two containers is opened: The gases will intermix and thus there will be more disorder in the system.

B. A solid powder decomposes to form a solid product and a gas product.

The energy is absorbed by the solid reactant and thus it is endothermic and the solid reactants are converting to gaseous products, thus the entropy increases.

Read more on -

1= c 2= a or d3 = idk sorry 4= c5= c

The correct answer is b