In an experiment, as temperature increased from 20°C to 80°C, reaction rate doubled every 10°C. If the initial rate is 4 units/s at 20°C, what is the rate at 50°C?

A 16 units/s

B 32 units/s

C 64 units/s

D 8 units/s

✓ Correct Answer: Option B

Rate doubles 3 times (20→30→40→50): 4 → 8 → 16 → 32 units/s.

💡 Why is B) the correct answer?

The correct answer to the question "In an experiment, as temperature increased from 20°C to 80°C, reaction rate doubled every 10°C. If the initial rate is 4 units/s at 20°C, what is the rate at 50°C?" is Option B: 32 units/s.

The other options — A) 16 units/s, C) 64 units/s, D) 8 units/s — are incorrect for this ACT Exam Prep question. As explained above: Rate doubles 3 times (20→30→40→50): 4 → 8 → 16 → 32 units/s.

📚 About This ACT Exam Prep Practice Question

This 3-level ACT Exam Prep question from the Science topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free ACT Exam Prep practice test or use flashcards for spaced repetition review.

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In an experiment, as temperature increased from 20°C to 80°C, reaction rate doubled every 10°C. If the initial rate is 4 units/s at 20°C, what is the rate at 50°C?

✓ Correct Answer: Option B

📚 About This ACT Exam Prep Practice Question

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