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Ответ:
29.436 J/g.°C
Explanation:
We are given;
Mass of tungsten; m_t = 215 g
Initial temperature of tungsten; T_ti = 100°C
Final temperature; T_f = 21.5°C
Mass of water; m_w = 450 g
Initial temperature of water; T_tw = 20°C
From tables, specific heat capacity of water; c_w = 4.184 J/g.C
Thus;
Energy lost by tungsten = energy gained by water
Thus;
215 × c_t × (100 - 21.5) = 450 × 4 184 × (21.5 - 20)
Where c_t is specific heat capacity of tungsten
16877.5c_t = 496800
c_t = 496800/16877.5
c_t = 29.436 J/g.C
Ответ: