A quantity of PCl5 was heated in a 10 litre vessel at 250°C. 
    • Zigya Logo

    Previous Year Papers

    Download Solved Question Papers Free for Offline Practice and view Solutions Online.

    Test Series

    Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

    Test Yourself

    Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
    Advertisement

    Equilibrium

    Multiple Choice QuestionsShort Answer Type

    21. Under what condition, a reversible process becomes irreversible ?
    212 Views
    Answer
    22. Give two important characteristics of the equilibrium constant.
    119 Views
    Answer
    23. Give the equilibrium constant for the following equilibrium in terms of partial pressures:

    straight N subscript 2 left parenthesis straight g right parenthesis space plus space 3 straight H subscript 2 left parenthesis straight g right parenthesis space space space rightwards harpoon over leftwards harpoon space space space 2 NH subscript 3 left parenthesis straight g right parenthesis.
    127 Views
    Answer
    24. What is the relation between Kp and Kc?
    179 Views
    Answer
    Advertisement
    25. Under what condition in a reversible reaction is Kp = Kc?
    199 Views
    Answer
    26. Predict which of the following reaction will have appreciable concentration of reactants and products:
    left parenthesis straight a right parenthesis space Cl subscript 2 left parenthesis straight g right parenthesis space space space rightwards harpoon over leftwards harpoon space space space 2 Cl left parenthesis straight g right parenthesis comma space space straight K subscript straight C space equals space 5 space cross times space 10 to the power of negative 39 end exponent left parenthesis straight b right parenthesis space Cl subscript 2 left parenthesis straight g right parenthesis space plus space 2 NO left parenthesis straight g right parenthesis space space space leftwards harpoon over rightwards harpoon space 2 NO subscript 2 Cl left parenthesis straight g right parenthesis comma space space straight K subscript straight c space equals space 3.7 space cross times space 10 to the power of negative 8 end exponent left parenthesis straight c right parenthesis space Cl subscript 2 left parenthesis straight g right parenthesis space plus space 2 NO subscript 2 left parenthesis straight g right parenthesis space leftwards harpoon over rightwards harpoon space space 2 NO subscript 2 Cl left parenthesis straight g right parenthesis comma space space straight K subscript straight c space equals space 1.8
    541 Views
    Answer
    27. PCl5, PCl3 and Cl2 are at equilibrium at 500K and having concentration 1·59M PCl3, 1·59M Cl2 and 1·41 M PCl5. Calculate Kc for the reaction:
    <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>
    338 Views
    Answer
    Advertisement
    Zigya App

    28. A quantity of PCl5 was heated in a 10 litre vessel at 250°C. 
    PCl subscript 5 left parenthesis straight g right parenthesis space rightwards harpoon over leftwards harpoon space PCl subscript 3 left parenthesis straight g right parenthesis plus space Cl subscript 2 left parenthesis straight g right parenthesis. At equilibrium the vessel contains 0.1 mole of PCl subscript 5 comma 0.20 mole of PCl subscript 3 and 0.20 mole of Cl2. What is the value of equilibrium constant of the reaction?

    872 Views
  • Switch Icon Switch
    • Advertisement
    Advertisement
    29. At equilibrium, the concentration of N2 = 3·0 × 10–3 M, O2 = 4·2 × 10–3 M and NO = 2·8 × 10–3 M in a sealed vessel at 800K. What will be Kc for the reaction:
    straight N subscript 2 left parenthesis straight g right parenthesis space plus space straight O subscript 2 left parenthesis straight g right parenthesis space space rightwards harpoon over leftwards harpoon space space space 2 NO left parenthesis straight g right parenthesis
    321 Views
    Answer
    30. The following concentrations were obtained for the formation of NH3 from N2and H2 at equilibrium at 500K. [N2] = 1·5 × 10–2 M, [H2] = 3·0 × 10–2M and [NH3] = 1·2 × 10–2 M. Calculate the equilibrium constant.
    860 Views
    Answer
    Advertisement
    Flag Popup Icon
    Flag it
    Submit
    Flag Popup Icon
    Switch to
    flexipad
    Share It Icon
    Share it
    Share It
    Share it