79. Solving a chemistry problem
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2.21. Determine ΔS when 2 kg of water is heated from 273.2 to 400 K, if
Tm = 273.2 K; Stv= 1.570 J/(g•K);
Tn.t.k. = 373.2 K; Cf = 4.187 J/(g•K);
ΔНpl = 6.138 kJ/mol; Cgas= 1.919 J/(g·K).
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