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For the equilibrium
$PCl subscript 5 space space rightwards harpoon over leftwards harpoon space space space space PCl subscript 3 left parenthesis straight g right parenthesis space plus space Cl subscript 2 left parenthesis straight g right parenthesis space at space 298 space straight K comma$ $straight K space equals space 1.8 space cross times space 10 to the power of negative 7 end exponent$ ,
What is the ∆G⁰ for the reaction?

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282. The equilibrum constant for a reaction is 10. What will be the value of ∆G⁰ ? R = 8.314 JK^–1 mol^–1, T = 300 K.

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283.

Calculate $increment subscript straight r straight G to the power of 0$ for conversion of oxygen to ozone, $3 over 2 straight O subscript 2 left parenthesis straight g right parenthesis space space rightwards arrow space space space space straight O subscript 2 left parenthesis straight g right parenthesis space at space 298 space straight K comma$ If $straight K subscript straight P$ for this conversation is $2.47 space cross times space 10 to the power of negative 29 end exponent.$

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Long Answer Type

284.

Calculate the equilibrium constant for the reaction at 400 K:

$space space 2 NOCl left parenthesis straight g right parenthesis space space space rightwards harpoon over leftwards harpoon space space space 2 NO left parenthesis straight g right parenthesis space plus space Cl subscript 2 left parenthesis straight g right parenthesis$
$increment subscript straight r straight H to the power of 0 space equals space 77.2 space KJ space mol to the power of negative 1 end exponent space and increment subscript straight r straight S to the power of 0 space equals space 122 space JK to the power of negative 1 end exponent space mol to the power of negative 1 end exponent space 400 space straight K.$

147 Views

Short Answer Type

285.

Find out the value of equilibrium constant for the following reaction at 298 K:

$2 NH subscript 3 left parenthesis straight g right parenthesis space plus space CO subscript 2 left parenthesis straight g right parenthesis space space space rightwards harpoon over leftwards harpoon space space NH subscript 2 CONH subscript 2 left parenthesis aq right parenthesis space plus space straight H subscript 2 straight O left parenthesis l right parenthesis$

Standard Gibbs energy change, $increment straight G degree$ at the given temperature, is -13.6 kJ mol^-1.

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286.

The equilibrium constant at $25 degree straight C$ for the process $<pre>uncaught exception: Http Error #404 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 #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>$ $<pre>uncaught exception: Http Error #404 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 #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>$

Calculate the value of $increment subscript straight r straight G to the power of 0 space at space 25 degree straight C space left parenthesis straight R space equals space 8.314 space JK to the power of negative 1 end exponent space mol to the power of negative 1 end exponent right parenthesis.$ In which direction is the reaction spontaneous when reactants and products are under standard conditions?

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Long Answer Type

287. At 60°C, dinitrogen tetroxide is fifty percent dissociated. Calculate the standard free energy change at this temperature and at one atmosphere.

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Short Answer Type

288.

Using the data given below, calculate the value of equilibrium constant for the reaction

$stack 3 HC identical to CH left parenthesis straight g right parenthesis with Acetylene below space space rightwards harpoon over leftwards harpoon space space straight C subscript 6 straight H subscript 6 left parenthesis straight g right parenthesis space at space 298 space straight K$

assuming ideal behaviour.

$increment subscript straight r straight G to the power of 0 space left parenthesis HC space identical to space CH right parenthesis space equals space 2.09 space cross times space 10 to the power of 5 space straight J space mol to the power of negative 1 end exponent comma space increment subscript straight r straight G to the power of 0 left parenthesis straight C subscript 6 straight H subscript 6 right parenthesis space equals space 1.24 space cross times space 10 to the power of 5 space straight J space mol to the power of negative 1 end exponent space and straight R space equals space 8.314 space JK to the power of negative 1 end exponent space mol to the power of negative 1 end exponent$

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289.
State second law of thermodynamics in different ways.

(i) It is impossible to convert heat completely into an equivalent amount of work without producing some change in some other part of the system.

(ii) All natural and spontaneous processes take place in one direction only and are thermodynamically irreversible.

(iii) It is impossible to convert heat from a reservoir into work by a cyclic process without transferring to a colder reservoir.

(iv) Heat cannot pass itself from a colder to a hotter body.

(v) It is impossible for a self-acting machine, unaided by any external agency, to convey heat from a body at lower temperature to a body at a higher temperature.

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