A compound has the following composition on a mass basis: 45.90% carbon, 2.73% hydrogen, 26.23% oxygen, 7.65% nitrogen, and the balance sulfur. Determine the molecular formula of the compound by specifying values for w, x, y, and z in the following: CwH10OxNySz

(a) The ideal gas equation of state is a fairly simple expression of the relationship between the physical properties of a gas. In Module 4, we will consider some other equations of states, one of which is the van der Waals equation of state, (? + a n2/ v2) (V-nb)=nRT where a and b are constant coefficients for a given substance, and P, V, T, and n have their usual meaning. Find the partial derivative (P/T)v for this equation of state . b) Mathematically, it is known that for three variables that are related to one another (as P, Vm, and Tare here) by a function (or equation of state), one can show                                     (??/??)z (??/??)x (??/??)y =−1 (note the cyclic variation of the three variables).Using this relationship, and the definitions of kT(coefficient of isothermal compressibility) and a (coefficient of isobaric thermal expansibility), find a simple equation relating the van der Waals parameter, b, to Vm, a, and kT. (For a discussion of this sort of…

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