Aluminum (Al) is melted at 661 C. This melting process is considered as reversible process or...

 

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Aluminum (Al) is melted at 661 C. This melting process is considered as reversible process or equilibrium melting. During melting, 10700 joules per mole of heat (heat of fusion) is absorbed. Note that during melting, temperature and pressure (1 atm) are constant. Atomic weight of Al is 27 gr/mol. Calculate the heat required to rise the temperature of solid 1 kg Al from room temperature, melt it and hold it at 750 C. The pressure is kept constant during heating and melting of Al at latm. cpAl(s)-20.67+12.38T (J/mol.K). cpAl (1)=31.76 (J/mol.K) Aluminum (Al) is melted at 661 C. This melting process is considered as reversible process or equilibrium melting. During melting, 10700 joules per mole of heat (heat of fusion) is absorbed. Note that during melting, temperature and pressure (1 atm) are constant. Atomic weight of Al is 27 gr/mol. Calculate the heat required to rise the temperature of solid 1 kg Al from room temperature, melt it and hold it at 750 C. The pressure is kept constant during heating and melting of Al at latm. cpAl(s)-20.67+12.38T (J/mol.K). cpAl (1)=31.76 (J/mol.K)