How much heat is needed to heat 1 liter of water by 10C?
| November 30, 2020 | education
Q = c * m * t is the formula for finding the amount of heat, where c is the specific heat capacity, m is the mass, t is the temperature change.
Let’s find the mass of water: m = p * V; p = 1000 (kg / cubic meter), V = 1 (l) = 1 * 10 ^ -3 (cubic meters)
m = 1000 * 1 * 10 ^ -3 = 1 (kg)
s = 4200 (J / kg * degree Celsius) – tabular value
t = 10 (degrees Celsius)
Q = 4200 * 1 * 10 = 42000 (J)
Answer: 42000 J
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