How many degrees has the boiling water with a mass of 27 kg cooled down if it has given 1500 J
| May 11, 2021 | education
How many degrees has the boiling water with a mass of 27 kg cooled down if it has given 1500 J of heat to the environment?
We use the formula for calculations: Q = cm (t0 – t)
We denote what needs to be found by T
T = t0 – t
Given:
Q = 1500 J
m = 27 kg
c = 4200 J / kg * OS
We get the formula: Q = cmT
We express T
T = Q / cm
Substituting numeric values
T = 1500/4200 * 27
T = 0.013 oC
It is possible that an error was made in the condition and the units of measurement are not J, but kJ.
Then:
T = 1500000/4200 * 27
T = 13 OC
Answer: 0.013 or 13 degrees Celsius.
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