Metallurgical Thermodynamics and Kinetics MCQ Questions and Answers

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Enhance your knowledge of Metallurgical Thermodynamics and Kinetics with this comprehensive collection of MCQ questions and answers. These MCQ questions and answers in Metallurgical Thermodynamics and Kinetics are specifically designed for students of Metallurgical Engineering who are preparing for the GATE Exam. Strengthen your preparation and excel in your studies with this valuable resource. Page-6 section-1

Each section contains 100 MCQs on Metallurgical Thermodynamics and Kinetics .

The Daltons law of partial pressure can be written as

A) $${X_i} = \frac{{{P_i}}}{{{P_T}}}$$ B) $${X_i} = \frac{{{P_i}}}{{{V_T}}}$$ C) $${X_i} = \frac{{{V_i}}}{{{P_T}}}$$ D) $${X_i} = \frac{{{T_i}}}{{{V_T}}}$$

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

When two phases α and β in an alloy are in thermodynamic equilibrium, then

A) $$C_p^\alpha = C_p^\beta $$ B) $$V_m^\alpha = V_m^\beta $$ C) $$G_m^\alpha = G_m^\beta $$ D) $$G_i^\alpha = G_i^\beta $$

Discuss

Answer & Solution

Answer: Option D

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Consider an ideal solution of component A and B. The entropy of mixing per mole of an alloy containing 50 wt% B, is

A) R In 2 B) -R In 2 C) 3R In 2 D) -3R In 2

Discuss

Answer & Solution

Answer: Option A

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The hydrogen content of steel in equilibrium with hydrogen gas at 1 bar pressure is 28 ppm at some temperature. Hydrogen content in the metal at the same temperature gets reduced at 1 ppm, when the equilibrium PH₂ changes to . . . . . . . . bar.

A) 28 B) $$\frac{1}{{28}}$$ C) $${\left( {\frac{1}{{28}}} \right)^{1.5}}$$ D) $${\left( {\frac{1}{{28}}} \right)^2}$$

Discuss

Answer & Solution

Answer: Option B

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For an ideal gas, Cp - Cv is

A) R B) -R C) 0 D) $$\left( {\frac{3}{2}} \right)R$$

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Answer & Solution

Answer: Option A

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At 1200°C, the standard Gibbs energy of thermal decomposition of one mole of wustite into Fe and O₂ is 168 J.
The corresponding dissociation pressure (in atm.) is

A) 2.51 × 10^-15 B) 1.22 × 10^-12 C) 5.0 × 10^-8 D) 1.13 × 10^-8

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Uphill diffusion means diffusion from

A) a lower concentration and lower chemical potential to higher concentration and higher chemical potential B) a higher concentration to lower concentration C) a lower chemical potential to higher chemical potential D) a lower concentration and higher chemical potential to higher concentration but lower chemical potential

Discuss

Answer & Solution

Answer: Option A

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Select the correct plot of Gibbs free energy (G) Vs. Temperature (T) for a single component system from the following:
Metallurgical Thermodynamics and Kinetics mcq question image

Metallurgical Thermodynamics and Kinetics mcq question image

A) P B) Q C) R D) S

Discuss

Answer & Solution

Answer: Option B

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The part of the universe excluding the system is known as

A) the surrounding B) system C) isolated system D) phase

Discuss

Answer & Solution

Answer: Option A

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Reaction between A and B results in an intermediate complex AB* which leads to the final product AB as, A + B ⟶ AB* ⟶ AB. Collision rate theory views the rate as dependent on

A) frequency of breakdown of intermediate product B) frequency of energetic interaction to form AB C) frequency of formation of AB from AB* D) frequency of breakdown of AB

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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Metallurgical Thermodynamics and Kinetics MCQ Questions and Answers | Metallurgical Engineering