The enthalpy for a mixture of H2SO4(1) and Water (2) at 313.15 K as a function of mass fraction is given by equation below where H is in units of kJ/mole and S is in units of J/mol K. (Careful of units) We are mixing a stream of 50 kg H2SO4 at 313.15 K with a stream of 100 kg water at 313.15 K. What is the enthalpy change on mixing for this mixture. If we desired that the outlet is 313.15 K, how much energy must be removed/added to the mixing tank to ensure that temperature remains constant. Determine the partial molar excess enthalpy for component 1 at infinite dilution. Determine gibbs free energy change on mixing for this process. Demonstrate if this system is not possible, reversible, irreversible?
Evaluate the steps that can be taken to avoid the need for air conditioning: Describe how the existing plants and equipment can be optimised and offer some respite to the occupants in achieving a “comfortable” environment and analyse the methods that may be available and its limitation
March 25, 2015
11:37 am
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