logo

Question detail

What is the standard entropy change (ΔS°) for the reaction: 2H₂(g) + O₂(g) → 2H₂O(g) given the standard molar entropies: S°(H₂) = 130.6 J K⁻¹ mol⁻¹, S°(O₂) = 205.0 J K⁻¹ mol⁻¹, and S°(H₂O) = 188.8 J K⁻¹ mol⁻¹?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Thermodynamics (A-level only)

Exam-style question

Try this first

What is the standard entropy change (ΔS°) for the reaction: 2H₂(g) + O₂(g) → 2H₂O(g) given the standard molar entropies: S°(H₂) = 130.6 J K⁻¹ mol⁻¹, S°(O₂) = 205.0 J K⁻¹ mol⁻¹, and S°(H₂O) = 188.8 J K⁻¹ mol⁻¹?.

  1. A.−213.0 J K⁻¹
  2. B.−228.6 J K⁻¹
  3. C.−241.0 J K⁻¹
  4. D.−257.2 J K⁻¹

Answer and explanation

Attempt the question first, then reveal the model answer and explanation.

Common mistake

No common mistake is linked to this question yet.

Related flashcards

No flashcards are published for this page yet.

Related practice questions

No questions are published for this page yet.