Use the phase rule on system, Chemistry

Q. Consider a system containing only NH4Cl(s), NH3(g), and HCl(g). Assume that the equilibrium NH4Cl(s) ⇔ NH3(g), and HCl(g) exists.

(a) Suppose you prepare the system by placing solid NH4Cl in an evacuated flask and heating to 400K. Use the phase rule to decide whether you can vary the pressure while both phases remain in equilibrium at 400K.

(b) According to the phase rule, if the system is not prepared as described in part (a) could you vary the pressure while both phases remain in equilibrium at 400K? Explain.

(c) Rationalize your conclusions for these two cases on the basis of the thermodynamic equilibrium constant. Assume that the gas phase is an ideal gas mixture and use the approximate expression K = pNH3 pHCl / (p0)2.

 

Posted Date: 7/2/2013 3:22:25 AM | Location : United States







Related Discussions:- Use the phase rule on system, Assignment Help, Ask Question on Use the phase rule on system, Get Answer, Expert's Help, Use the phase rule on system Discussions

Write discussion on Use the phase rule on system
Your posts are moderated
Related Questions
how to find out the basic radicals


Vulcanization of rubber The procedure of heating natural rubber with sulphur to enhance its properties is known as vulcanization. Vulcanization was illustrated by Charles Goody



2-Ethylbutanoic acid can be prepared by a malonic ester synthesis

general principal for extraction of metals


what organic compounds can be separated by simple distillation

what is colloid?