Calculate the minimum amount of energy, in joules, required to completely melt 145 g of silver initially at 22.0°C. The melting
point of silver is at 962°C. Its specific heat capacity is 236 J/kg·K and its latent heat of fusion is 105 kJ/kg.
1 answer:
Answer:
47391.8 J
Explanation:
Q = m c Δt
For melting, Δt = (962-22)°C
Heat required to attain melting point = 145 x 10 ⁻³ x 236 x 940 =
= 32166.8 J
Heat required to melt at melting point = m L , L is latent heat of fusion.
= 145 x 10⁻³ x 105 x 10³ = 15225 J
Total energy required = 47391.8 J
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