Chemical Engineering Basics Scaling occurs in boiler tubes due to the fact that, the solubility of Ca(OH)₂ __________ with increasing temperature. Decreases None of these Increases Shows inversion of solubility Decreases None of these Increases Shows inversion of solubility ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The emf of a Deniell cell Zn | Zn²⁺ || Cu²⁺ | Cu can be increased by Increasing the concentration of zinc sulphate solution Increasing the concentration of copper sulphate solution Increasing the surface area of the electrodes Decreasing the surface area of the electrodes Increasing the concentration of zinc sulphate solution Increasing the concentration of copper sulphate solution Increasing the surface area of the electrodes Decreasing the surface area of the electrodes ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Toughness of a material is measured by the Notched bar test Universal testing machine Scratch test Vicker's hardness test Notched bar test Universal testing machine Scratch test Vicker's hardness test ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as Re0.8, Re-0.5 Re0.5, Re0.8 Re-0.8, Re0.5 Re0.8, Re0.5 Re0.8, Re-0.5 Re0.5, Re0.8 Re-0.8, Re0.5 Re0.8, Re0.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics 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 60000 J 90000 J 30000 J 240000 J 60000 J 90000 J 30000 J 240000 J ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Salvage value is the most flexible criteria for analysing a financial investment. 'Salvaging' means Disposing off a machine/property on as is where is basis Mortgaging the obsolete machine/property Disposing off machine/property, which is no longer useful in the present scenerio Writing off the obsolete machine/ property Disposing off a machine/property on as is where is basis Mortgaging the obsolete machine/property Disposing off machine/property, which is no longer useful in the present scenerio Writing off the obsolete machine/ property ANSWER DOWNLOAD EXAMIANS APP
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