Answered

Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Connect with a community of experts ready to help you find solutions to your questions quickly and accurately. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

Consider the entropy change in the following chemical or physical processes:
1.2 Na(s) + Cl₂(g) → 2 NaCl(s)
2. N₂(g) + 3 H₂(g) → 2 NH3(g)
3. H₂O(s)→ H₂O(l)
4. C10H22(1)→ C10H22(S)
5.2 Mg(s) + O₂(g) → 2 MgO(s)
In which of these processes is entropy increased?

Consider The Entropy Change In The Following Chemical Or Physical Processes 12 Nas Clg 2 NaCls 2 Ng 3 Hg 2 NH3g 3 HOs HOl 4 C10H221 C10H22S 52 Mgs Og 2 MgOs In class=

Sagot :

xKelvin

Answer:

D

Explanation:

Recall that entropy measures the number of microstates in a substance, which is highest in gases, followed by liquids and solids. Hence, entropy increases if the products have more gaseous molecules than the reactants.

  • In reaction one, chlorine gas is converted into solid NaCl, so entropy decreaes.
  • In reaction two, four moles of gas are converted into two moles of gas, so entropy decreases.
  • In reaction three, ice is melted to form water, which has higher entropy. Thus, entropy increases.
  • In reaction four, a liquid is freezed into its solid phase, leading to a decrease in entropy.
  • In reaction five, oxygen gas is converted into solid MgO, so entropy decreases.

In conclusion, the answer is D.  

Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Westonci.ca is here to provide the answers you seek. Return often for more expert solutions.