0

Guest

Courses New

Ammonium hydrogen sulphide dissociates as follows NH4HS(s) NH3(g) + H2S(g) If solid NH4HS is placed in an evacuated flask at certain temperature it will dissociate until the total pressure is 600 torr. (a) Calculate the value of equilibrium constant for the dissociation reaction (b) Additional NH3 is introduced into the equilibrium mixture without changing the temperature until partial pressure of NH3 is 750 torr, what is the partial pressure of H2S under these conditions? What is the total pressure in the flask?

Ammonium hydrogen sulphide dissociates as follows


NH4HS(s) NH3(g) + H2S(g)


If solid NH4HS is placed in an evacuated flask at certain temperature it will dissociate until the total pressure is 600 torr.


(a) Calculate the value of equilibrium constant for the dissociation reaction


(b) Additional NH3 is introduced into the equilibrium mixture without changing the temperature until partial pressure of NH3 is 750 torr, what is the partial pressure of H2S under these conditions? What is the total pressure in the flask?

Grade:12

2 Answers

Naveen Kumar
askIITians Faculty 60 Points
9 years ago
The reversible reaction is:
...............NH4HS(s) <,................>.NH3(g) + H2S(g)
….............a....................................0.............0............(initially)
...............a-p1.................................p1............p1.........(at equilibrium)
Given total pressure=600 torr
............p1+p1..=600
p1=300 torr
Kp=p(NH3)*p(H2S)=p1*p1=90000(torr)2
Now if the partial pressure of NH3=750 torr, let partial pressure of H2S=p2
Then, Kp=90000=750*p2
p2=Kp/750
and total pressure=p2+750 torr
Nanda Kishoreu
23 Points
6 years ago
It is an reversible reaction so the formula. Is Kp =kc (true) to paver of Nso it come p2+750::::::::.........................................................................................................................

Think You Can Provide A Better Answer ?

Other Related Questions on Physical Chemistry

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More