1. How many joules must be added to 10.0 g of water to raise its temperature from 10°C to

15°C?

209.3 Joules require to raise the temperature from 10 °C to 15 °C.

Explanation:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m * c * ΔT

Given dа ta:

mass of water = 10 g

initial temperature T1 = 10 °C

final temperature T2 = 15 °C

temperature change = ΔT = T2-T1 = 15°C - 10°C = 5 °C

Energy or joules added to increase the temperature Q = ?

Solution:

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

Q = m * c * ΔT

Q = 10 g * 4.186 J/g.°C * 5 °C

Q = 209.3 J