Question

If it takes 645 J of energy to warm a 5.51-g sample of water, how much energy would be required to warm 55.1 g of water by the same amount?

Answer 1

Answer:

Explanation:If 5.51 g of water needs 645 J of energy to warm then 55.1 g of water needs 6450 J of energy to warm.

Answer 2

The quantity of energy that would be required to warm 55.1 g of water by the same amount is equal to 6450 Joules.

Given the following data:

• Quantity of energy A = 645 J

• Mass of water A = 5.51 g

• Mass of water B = 55.1 g

To determine the quantity of energy would be required to warm 55.1 g of water by the same amount, we would apply direct proportion:

By direct proportion:

645 Joules of energy = 5.51 grams of water

X Joules of energy = 55.1 grams of water

Cross-multiplying, we have:

$645 \times 55.1 = 5.51X\\\\35539.5 = 5.51X\\\\X = \frac{35539.5}{5.51}$

X = 6450 Joules

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