Chemical Reaction Engineering The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to D1.5 √d D D2 D1.5 √d D D2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Design of heterogeous catalytic reactor involves consideration of __________ steps. Only chemical Neither A nor B Only physical Both A & B Only chemical Neither A nor B Only physical Both A & B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The heat of reaction Depends on both pressure and mechanism of reaction Depends on the mechanism of reaction only Depends on the pressure only Is independent of the mechanism of reaction Depends on both pressure and mechanism of reaction Depends on the mechanism of reaction only Depends on the pressure only Is independent of the mechanism of reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the gaseous reaction 2A → B, where the feed consists of 50 mole % A and 50 mole % inerts, the expansion factor is -0.25 1 -0.5 -0.25 1 -0.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the liquid phase parallel reactions:R, rR = K?.CA2; E? = 80 KJ/moleS, rS = K?.CA ; E? = 120 KJ/mole The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted at High temperature in a PFR Low temperature in a CSTR Low temperature in a PFR High temperature in a CSTR High temperature in a PFR Low temperature in a CSTR Low temperature in a PFR High temperature in a CSTR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Organic catalysts differ from the inorganic catalyst in the sense that the former is Active at very high temperature only Prohibitively costly Proteinous in nature Active at cryogenic temperatures only Active at very high temperature only Prohibitively costly Proteinous in nature Active at cryogenic temperatures only ANSWER DOWNLOAD EXAMIANS APP
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