In each of the following pairs, which has the greatest amount of entropy? Assume

Question

In each of the following pairs, which has the greatest amount of entropy? Assume that all variables not mentioned are the same for both members of a pair:

(a) A mol of calcite at 0 C, or (a') A mol of calcite at 100 C

(b) A sample of air under a pressure of 1 bar, or (b') The same sample under 10 bar

(c) Crystalline salt plus water, or (c') a solution formed by dissolving the salt in water

(d) Crystalline basalt, or (d') the magma from which the basalt crystallized

EXPLAIN REASONING FOR ALL ANSWERS!!!

Explanation / Answer

Entropy is themeasure of disorderness.

More is the disorder more is the entropy.

(a) A mol of calcite at 100 degree C has more entropy becuase higher the temperature higher is the randomness and hence entropy.

(b) A sample of air under a pressure of 1 bar has more entropy because at lower pressures higher is volume occupied and hence is the randomness and entropy.

(c) A solution formed by dissolving the salt in water has more entropy because dissolved salt undergoes dissociation to form free moving ions and hence entropy is more

(d) Magma from which the basalt crystallized.

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.