Aconstant-volume batch reactor undergoes the reaction a ? b. the initial concentration of a is denoted by cao, wheras the initial concentration of b is zero. the first-order reaction rate per unit volume is ra kca. the rate of disappearance of species a is equal to the reaction rate a. b. c. d. draw a flowchart and label all variables of interest. write the ode model that is the governing equation for the batch reactor system find the general solution to the ode write the initial value constraint. find the particular solution, ca(t)

Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

The identities of substances are the same before and after which type of change