If 900 J/g of heat is exchanged at boiling point of water, then what is increase

If 900 Jg Of Heat Is Exchanged At Boiling Point Chemistry QuestionIf 900 Jg Of Heat Is Exchanged At Boiling Point Chemistry Question

If 900 J/g of heat is exchanged at boiling point of water, then what is increase in entropy

Options

(a) 900 J/mol
(b) 87.2 J/mol
(c) 43.4 J/mol
(d) Zero

Correct Answer:

43.4 J/mol

Explanation:

Heat exchanged at boiling point of water
= 900 J/g = 900 x 18 J/mol = 16200.0 J/mol.
ΔS(vap) = ΔH(vap) / T(b) = 16200/ 373 ( therefore T(b) = 273 + 100 = 373 K)
= 43.4 J/mol.

AddThis Website Tools
admin:

Related Questions

  1. Decreasing order of nucleophilicity is
  2. A compound,containing only carbon,hydrogen and oxygen,has a molecular weight
  3. The covalent bond length is the shortest in which one of the following bonds
  4. P₂O₅ is an anhydride of
  5. Which of the following has highest chlorine content