+91-8076753736[email protected]
logo
logo
-->

Equilibrium

Question
CBSEENCH11006390
Wired Faculty App

A sample of HI(g) is placed in a flask at a pressure of 0·2 atm. At equilibrium, the partial pressure of HI(g) is 0·04 atm. What is Kp for the given equilibrium?

                      2 HI space left parenthesis straight g right parenthesis space space rightwards harpoon over leftwards harpoon space space space space space space straight H subscript 2 left parenthesis straight g right parenthesis space plus space straight I subscript 2 left parenthesis straight g right parenthesis

Solution

The given reversible reaction is 
                               
space space space space space space space space space space space space space space space space space space space space space space 2 HI left parenthesis straight g right parenthesis space rightwards harpoon over leftwards harpoon space space space space space space space space straight H subscript 2 left parenthesis straight g right parenthesis straight I space space space plus space straight I subscript 2 left parenthesis straight g right parenthesis nitial space pressure space 0.2 space atm space space space space space space space space space space space space minus space space space space space space space space space space space space space minus At space equilibrium space left parenthesis 0.2 minus straight p right parenthesis atm space space space space space space space straight p divided by 2 space atm space space space space space space straight p divided by 2 space atm space space space space space space space space space space space space space space space space space space space space 0.04 space atm space space space space space space space space space space 0.08 space atm space space space space space 0.08 space atm
     (Decrease in the pressure of HI = 0.2 - 0.04  = 0.16 atm).
Applying the law of chemical equilibrium
         <pre>uncaught exception: <b>Http Error #404</b><br /><br />in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/HttpImpl.class.php line 61<br />#0 [internal function]: com_wiris_plugin_impl_HttpImpl_0(Object(com_wiris_plugin_impl_HttpImpl), NULL, 'http://www.wiri...', 'Http Error #404') #1 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/php/Boot.class.php(769): call_user_func_array('com_wiris_plugi...', Array) #2 [internal function]: _hx_lambda->execute('Http Error #404') #3 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/haxe/Http.class.php(532): call_user_func_array(Array, Array) #4 [internal function]: haxe_Http_5(true, Object(com_wiris_plugin_impl_HttpImpl), Object(com_wiris_plugin_impl_HttpImpl), Array, Object(haxe_io_BytesOutput), true, 'Http Error #404') #5 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/php/Boot.class.php(769): call_user_func_array('haxe_Http_5', Array) #6 [internal function]: _hx_lambda->execute('Http Error #404') #7 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/HttpImpl.class.php(27): call_user_func_array(Array, Array) #8 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/haxe/Http.class.php(444): com_wiris_plugin_impl_HttpImpl->onError('Http Error #404') #9 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/haxe/Http.class.php(458): haxe_Http->customRequest(true, Object(haxe_io_BytesOutput), NULL, NULL) #10 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/HttpImpl.class.php(40): haxe_Http->request(true) #11 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/TextServiceImpl.class.php(80): com_wiris_plugin_impl_HttpImpl->request(true) #12 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/service.php(19): com_wiris_plugin_impl_TextServiceImpl->service('mathml2accessib...', Array) #13 {main}</pre>
Putting the values in expression (1), we have
              straight K subscript straight p space equals space fraction numerator 0.08 space atm space cross times space 0.08 space atm over denominator left parenthesis 0.04 space atm right parenthesis squared end fraction space equals space 4.0
     

Some More Questions From Equilibrium Chapter

What is equilibrium?

Give two examples of physical equilibrium.

What kind of molecules in a liquid can evaporate?

Name the factors on which vapour pressure of any liquid depends.

Which measurable property becomes constant in water vapour equilibrium?

Give an example from daily life in which there is gas solution equilibrium?

A crystal of common salt of a given mass is kept in its aqueous solution. After 24 hours, its mass remains the same. Is the crystal in equilibrium with the solution?

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation