E. coli is cultivated in continuous culture under aerobic conditions with a glucose limitation. When the system is operated at D = 0.2 h-1, determine the effluent glucose (S) and biomass concentrations (X) by using the following equations (S0 = 5 g/L):a) Monod equation: 휇휇푚푚푚푚푚푚= 0.25 h-1, Ks = 100 mg/L, 푌푌푋푋/푆푆푀푀 = 0.4 g X/g S;b) Contois equation: 휇휇푚푚푚푚푚푚= 0.25 h-1, 퐾퐾푠푠푚푚 = 0.04, 푌푌푋푋/푆푆푀푀= 0.4 g X/g SCompare and comment on the results. Why might they be different? [Hint: consider the different assumptions under which each equation operates]

coral.

explanation:

coral. many marine organisms that produce calcium carbonate shells or skeletons are negatively impacted by increasing co2 levels and decreasing ph in seawater.

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.