How much energy is required to heat 40.0 grams of water from 25°C to 75°C? The specific heat capacity of water is 4.184 J/g.

Q = 8368J

Explanation:

Mass(m) = 40g

Initial temperature (T1) = 25°C

Final temperature (T2) = 75°C

Specific heat capacity (c) = 4.184J/g°C

Heat energy (Q) = ?

Q = Mc∇T

Q = Mc * (T2 -T1)

Q = 40 * 4.184 * (75 - 25)

Q = 167.36 * 50

Q = 8368J

The heat energy required to raise the temperature from 25°C to 75°C is 8368J

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.