Chemical Engineering
2017 · Paper 1
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Complete GATE CH 2017 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 31–33 of 65. Imported answers require review unless explicitly marked reviewed.
Question 31
Open questionCHNAT2 marksNeeds review
Reaction A → B is carried out in a reactor operating at steady state and 1 mol/s of pure A at 425°C enters the reactor. The outlet stream leaves the reactor at 325°C. The heat input to the reactor is 17 kW. The heat of reaction at the reference temperature of 25°C is 30 kJ/mol. The specific heat capacities (in kJ/mol.K) of A and B are 0.1 and 0.15, respectively.
The molar flowrate of B leaving the reactor, rounded to 2 decimal places, is __________ mol/s.
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Open questionCHNAT2 marksNeeds review
The pressure of a liquid is increased isothermally. The molar volume of the liquid decreases from
m³/mol to
m³/mol during this process. The isothermal compressibility of the liquid is
Pa⁻¹, which can be assumed to be independent of pressure.
The change in the molar Gibbs free energy of the liquid, rounded to nearest integer, is ______ J/mol.Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 33
Open questionCHNAT2 marksNeeds review
A sparingly soluble gas (solute) is in equilibrium with a solvent at 10 bar. The mole fraction of the solute in the gas phase is 0.01. At the operating temperature and pressure, the fugacity coefficient of the solute in the gas phase and the Henry’s law constant are 0.92 and 1000 bar, respectively. Assume that the liquid phase obeys Henry’s law.
The MOLE PERCENTAGE of the solute in the liquid phase, rounded to 2 decimal places, is ______.
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