Chemical Reaction Engineering The reactions with low activation energy are Slow Non-spontaneous Always spantaneous Fast Slow Non-spontaneous Always spantaneous Fast ANSWER DOWNLOAD EXAMIANS APP
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 D2 D1.5 √d D D2 D1.5 √d D ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R? 2.24 2 1.6 2.5 2.24 2 1.6 2.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The excess energy of the reactants required to dissociate into products is known as the __________ energy. Thermal Threshold Binding Activation Thermal Threshold Binding Activation ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a zero order chemical reaction, the Half life period is directly proportion to the initial concentration of the reac-tants Products concentration increases linerarly with time Plot of products concentration with time is a straight line through the origin All of these Half life period is directly proportion to the initial concentration of the reac-tants Products concentration increases linerarly with time Plot of products concentration with time is a straight line through the origin All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are Insensitive to temperature changes Highly temperature sensitive Mostly irreversible Always irreversible Insensitive to temperature changes Highly temperature sensitive Mostly irreversible Always irreversible ANSWER DOWNLOAD EXAMIANS APP
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