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liq [111]
3 years ago
10

A sample of water is heated from 10.0°C to 15.0°C by the addition of 125 J of heat. What is the

Chemistry
1 answer:
Slav-nsk [51]3 years ago
8 0
<h3>Answer:</h3>

5.97 g of water

<h3>Explanation:</h3>
  • Quantity of heat is given by multiplying the mass of a substance by specific heat capacity then by change in temperature.

Q = m × c × ΔT

In this case;

Quantity of heat, Q = 125 Joules

Change in temperature = 15°C - 10°C

                                       = 5°C

We know that the specific heat capacity of water is 4.186 J/g°C

Therefore, to get the mass we first rearrange the formula;

Mass = Q ÷ cΔT

        = 125 J ÷ (5°C × 4.186 J/g°C)

        = 5.97 g

Therefore, the mass of water is 5.97 g

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