Which statement best describes what energy transfer diagram show?
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Ответ:
Answer;
Specific heat of the metal object = 0.893 J/g°C
Explanation and solution;
Quantity of heat = mass × specific heat capacity × change in temperature
ΔQ = Mcθ
Heat lost by the metal object = Heat gained by water
Heat lost by the metal object
= Mass of the metal object × specific heat of the metal ×change in temp
= 19 x specific heat ×( 22 - 96)
= 1406 × specific heat
Heat gained by water
= Mass of water × specific heat capacity of water × change in temperature
= 75 x 4.186 x ( 22 - 18)
= 1255.8 J
Therefore;
= 1406 x specific heat = 1255.8
Specific heat = 0.893 J/g°C