Process Calculations GATE-1994
Fill in the blanks (Questions 1, 2 & 3):
Q 1: The heat of formation of a compound is defined as the heat of reaction leading to the formation of the compound from its ____________.
Q 2: A supersaturated solution of a sparingly soluble solute, at a concentration of C, is being fed to a crystallizer at a volumetric flow rate of V. The solubility of the solute is Cs. The output rate of solids from an efficient crystallizer is ____________.
Q 3: A gas bubble at a pressure of Pg is passed through a solvent with a saturation vapor pressure of Ps. If the time of passage of the bubble is long and the air is insoluble in the solvent, the mole fraction or solvent in the bubble will be equal to _________.
Q 4: The heat of reaction at 300 k and one-atmosphere pressure for the following gas phase reaction:
A+3B\rightarrow Cis -50,000 calories per mole of A converted. Data on the molar heat capacity at constant pressure (cal/mol.K) of the various components are:
C_p(A)=-0.4+80\times10^{-3}T(K) C_p(B)=7;\;\;\;\;C_p(C)=26Calculate the heat of the reaction at 500 K and one-atmosphere pressure.