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In chemistry, a steady state is a state in which all state variables are constant in spite of ongoing processes that strive to change them. For an entire system to be at steady state, i.e. for all state variables of a system to be constant, there must be a flow by the system (compare mass balance). One of the easiest examples of such a system is the case of a bathtub with the tap open but without the bottom plug: after a certain time the water flows in and out at the similar rate, so the water level (the state variable being Volume) stabilizes and the system is at steady state.
i) Define a membrane in a process engineering context. Two of the main desired attributes of membranes are high permeability and high selectivity. Define permeability and select
Number of neutrons in heavy hydrogen atom is: (1) 0 (2) 1 (3) 2 (4) 3 Ans: 1
comparison between acetic acid and acettaldehyde
Explain Objectives of Product development and evaluationexplain why is it necessary to develop new products describe what are the factors responsible for development of
Q. Illustrate important catalyst of aluminium? Anhydrous AlCl 3 is an important catalyst, used in organic synthesis and in the cracking of petroleum. Al 2 (S0 4 ) 3 as such o
Q. Explain Ionization Energy? Ans. When an electron is removed from an atom, the atom has been ionized. Therefore, the energy required to remove an electron from an atom i
how does salt bridge works??
how we synthesis picric acid why it required 1 hour for the reaction with HNO3,H2SO4 and show the mechanism of picric acid and uses of picric acid. and what is the role of HNO3,H2S
why f elememnts kept sepertaly in periodic table
the density of 2 molal aqueous solution of NaOH is 1.10g/L. Calculate the molarity of the solution.
Many reactions which seem to be quite easy are indeed very difficult. Thereactions proceed in different steps. In such stepwise difficult reactions, the overall reaction rate is determined by the slowest step between different steps.Several intermediate or unstable species are produced in different steps. Therefore, anstablereaction involving many steps will lead to complex equations. In order to expressthe overall rate of a complex reaction in terms of the individual rate constants, aspecial treatment is required.
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