How much heat did water weighing 200 g receive when heated from 10 to 30 degrees C?

Conversion to SI: 200 g = 0.2 kg
The formula for finding the amount of heat Q = c × m × (t2 – t1),
where c is the specific heat (tabular value), m is the mass,
(t2 – t1) – temperature difference during heating
c = 4200 J / (kg × ° C)
Q = 4200 × 0.2 × (30 – 10) = 16800 J
Answer: 16800 J



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