Question

Identify the polymer used in making floor tiles.

• A. PETE
• B. PVC
• C. HDPE
• D. LDPE

Hint:

Whenever you see commercial terms like "vinyl flooring" or "vinyl siding" in everyday life, remember that "vinyl" is simply the common commercial shorthand for Polyvinyl Chloride (PVC).

Answer 1

The Correct Option is B

Step 1: Understanding the Question:
We must establish the correct mathematical relationship between the consumption rates of N₂ and H₂ in the ammonia synthesis reaction.

Step 2: Key Formula or Approach:
The rate of reaction is related to stoichiometric coefficients as -d[N₂]/dt = -(1/3)d[H₂]/dt.

Step 3: Detailed Explanation:
From N₂ + 3H₂ → 2NH₃, equating the consumption rate terms gives -d[N₂]/dt = -(1/3)d[H₂]/dt. Removing the negative signs and rearranging isolates the desired relation: d[H₂]/dt = 3 d[N₂]/dt.

Step 4: Final Answer:
The correct relation is d[H₂]/dt = 3 d[N₂]/dt, which matches option (B).