Task id9588

Task id9588

Into a vessel containing m1 = 10 kg of water at a temperature T1 = 293 K, m2 = 7 kg of molten lead taken at the melting temperature Tmelt = 600 K was poured. This produced Δm1 = 0.05 kg of steam. What temperature will be established in the vessel after the lead has hardened? The specific heat capacities of water and lead are respectively c1 = 4190 J/(kg • K) and c2 = 130 J/(kg • K), specific heat of vaporization of water r = 2.26 • 106 J/kg, specific heat of fusion of lead λ = 30 • 103 J/kg. Neglect the heat capacity of the vessel.

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