GATE MT 2019 Paper 1 — page 6

Questions 16–18 of 65. Imported answers require review unless explicitly marked reviewed.

The variation of standard free energies for two oxides AO and BO with temperature are shown below.

The correct statement with reference to the above figure is

Your answerChoose one option.

AO is a gas

BO is a gas

A will reduce BO above temperature T₁

B will reduce AO below temperature T₁

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Terminal rise velocity of a spherical shaped solid in a liquid obeys the following functional relationship:

Where,

is the terminal rise velocity,

is the diameter of the solid,

is the apparent weight of the solid,

is the viscosity of liquid and

is the density of liquid. According to Buckingham Π theorem, the number of independent dimensionless variables needed to describe the phenomenon is

Your answerChoose one option.

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Consider electrodeposition of copper on a copper electrode from an aqueous solution containing

CuSO₄. Given: Faraday constant,

per gram equivalent. Assume transport of reactant is rate limiting, and mass transfer coefficient is

. The limiting current density (in

) is

Your answerChoose one option.

4.83

9.65

19.30

38.60

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2019 · Paper 1