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.

Paper practice 65 questionsPage 11 of 22

Question 31

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CHNAT2 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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Question 32

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CHNAT2 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.

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Question 33

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CHNAT2 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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