Given data: m = 255 g

ΔT = (95°C – 25.5°C) = 69.5°C

Find: we need to find how much heat is needed to raise the temperature.

**Explanation:**

To calculate the amount of heat needed to raise the temperature of water, we can use the formula:

Q = m *c *ΔT

### Step 2 of 2

By using the formula, Q = m *c *ΔT

Where:

Q is the heat energy (in joules),

m is the mass of water (in grams),

c is the specific heat capacity of water (approximately 4.18 J/g·°C), and

ΔT is the change in temperature (in °C).

Plugging these values into the formula, we get:

Q=255×4.1869.5

Calculating this equation gives us:

Q=74,685 J

**Explanation:**

Hence, by using the formula Q = m *c *ΔT we have calculated the amount of heat needed.

##### Final solution

Therefore, approximately 74,685 joules (J) of heat energy is needed to raise the temperature of 255 grams of water from 25.5°C to 95°C.