Metallurgical Engineering
2017 · Paper 1
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Complete GATE MT 2017 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 4–6 of 65. Imported answers require review unless explicitly marked reviewed.
Question 4
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The pressure (P) versus volume (V) diagram given below represents reversible isothermal curves at temperatures, T1, T2 and T3.
Considering one mole of ideal gas for all the three isothermal processes, which one of the following is TRUE?
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For the electrochemical reaction, Cu²⁺ + Zn = Zn²⁺ + Cu, the standard cell potential at 25°C and 1 atm pressure is:
(Given: E° (Cu²⁺/Cu) = 0.337 V and E° (Zn²⁺/Zn) = −0.763 V)
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The rate of dissolution of Al particles in liquid steel is proportional to concentration difference (ΔC). ΔC is defined by:
(Given: (i) C_b = bulk concentration of dissolved Al in liquid steel, (ii) C* = saturation concentration of Al in liquid steel at the given temperature, (iii) C_m = Density of Al/Atomic weight of Al.)
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