is taking place only in the gas phase of a square duct. The feed to the duct consists of a gas stream of pure A and a liquid stream of pure B. The flowing liquid B covers the bottom of the duct and evaporates into the gas phase, maintaining its equilibrium vapor pressure throughout the system. The gas phase flows in plug flow. Ignore the volume occupied by liquid B. (a) Express the rate law solely as a function of conversion, and evaluate numerically all possible symbols. (b) What is the rate of reaction, -rA, when the conversion is 50%

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.