How many joules are equivalent to 55.2 calories? (Note: 1 calorie = 4.184 joules)

• A. 231.6 joules
• B. 230.0 joules
• C. 231.0 joules
• D. 231 joules

Answer: (A)

Verified step by step guidance

1. Identify the given information: you have 55.2 calories and the conversion factor 1 calorie = 4.184 joules.
2. Write down the conversion equation to convert calories to joules: \(\text{Energy (joules)} = \text{Energy (calories)} \times 4.184\).
3. Substitute the given value of calories into the equation: \(\text{Energy (joules)} = 55.2 \times 4.184\).
4. Perform the multiplication to find the energy in joules (do not calculate the final number here, just set up the expression).
5. Express the final answer with the appropriate units, joules, after completing the multiplication.