Chemical Engineering Basics While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C. 1800 2000 2400 3000 1800 2000 2400 3000 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Carbon is present in the form of __________ in grey cast iron. Flakes Spheroids Cementite Nodular aggregates of graphite Flakes Spheroids Cementite Nodular aggregates of graphite ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics Scaling occurs in boiler tubes due to the fact that, the solubility of Ca(OH)₂ __________ with increasing temperature. Decreases Shows inversion of solubility Increases None of these Decreases Shows inversion of solubility Increases None of these 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 First empirical temperature scale conceived is the __________ temperature scale. Reaumer Celcius Farenhite Absolute Reaumer Celcius Farenhite Absolute ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Basics The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void. Greater than Less than Either A, B or C; depends on the size of atom Equal to Greater than Less than Either A, B or C; depends on the size of atom Equal to ANSWER DOWNLOAD EXAMIANS APP
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