Calculate the amount of heat required to heat a 300m³ pond by 10 ° C

The amount of heat for heating the body is determined from the equation
Q = m * c * (T2 – T1), where
m – body weight,
c – specific heat of the substance,
a (T2 – T1) – temperature change.
m = V * ro, where
V – body volume,
ro is the density of the substance.
For water
s = 4200 J / (kg * deg)
ro = 1000 kg / m ^ 3
Q = V * ro * c * (T2 – T1) = 300 * 1000 * 4200 * 10 = 12.6 * 10 ^ 9 J