CHEMICAL ENGINEERING

Question: The cathode in an electrochemical cell always carries [A]. negative charge. [B]. positive charge. [C]. zero charge. [D]. positive or negative charge depending upon the nature of the cell. Answer: Option A Explanation: No answer description available for this question.

Question: The bulk modulus of a material with Poisson’s ratio of 0.5 is equal to [A]. 3 x Young’s modulus [B]. Young’s modulus [C]. infinity [D]. zero Answer: Option C Explanation: No answer description available for this question.

Question: FeO (s) + CO (g) = Fe (s) + CO2 (g), k = 0. 435 at 1173E; At equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K? [A]. 1.0 [B]. 1.3 [C]. 2.3 [D]. 3.3 Answer: Option D Explanation: No answer description…

Question: For the irreversible reaction, Ca+ 2C = Ca C2 , Δ H°298 = – 60000 J . mole-1 . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be [A]. 30000…

Question: A cylinderical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson’s ratio of the rod is [A]. 0 [B]. 0.33 [C]. 0.44 [D]. 0.25 Answer: Option C Explanation: No answer description available for this question.

Question: A metal having a Poisson’s ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is [A]. -0.8 [B]. 0.8 [C]. +0.08 [D]. -0.24 Answer: Option D Explanation: No answer description available for this question.

Question: One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W . m-1 . k-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is [A]. 100 [B]. 900 [C]. 9000 [D]….

Question: Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant ‘K’ is [A]. 10 atm-1 [B]. 105 atm-1 [C]. 10 (dimensionless) [D]. 105 (dimensionless) Answer: Option B…

Question: If Reynolds number is greater than 1, then the [A]. viscous force is larger than the inertia force. [B]. inertia force is larger than the viscous force. [C]. inertia force is larger than the surface tension force. [D]. inertia force is larger than the gravitational force. Answer: Option B Explanation: No answer description available…

Question: At absolute zero temperature, for any reaction involving condensed phases [A]. Δ G° = 0 , Δ H° = 0 [B]. Δ H° = 0 , Δ S° = 0 [C]. Δ S° = 0 , Δ E° = 0 [D]. Δ S° = 0 , Δ Cp° = 0 Answer: Option C Explanation:…