Determine the sign of ΔS° for each of the following: I.The mixing of two gases at a given temperature and pressure
II.C(s) + 2 H₂O(g) → CO₂(g) + 2 H₂(g)

Question

Determine the sign of ΔS° for each of the following: I.The mixing of two gases at a given temperature and pressure II.C(s)+ 2 H₂O(g)→ CO₂(g)+ 2 H₂(g)

Quizplus · Accepted Answer

For I, the mixing of two gases increases the randomness or disorder, leading to a positive ΔS°. For II, the reaction goes from one solid and one gas to two gases, increasing the number of moles of gas and thus the disorder, also leading to a positive ΔS°.

Determine the Sign of ΔS° for Each of the Following