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question_answer1) If dissociation for reaction, \[PC{{l}_{5}}\]⇌ \[PC{{l}_{3}}+C{{l}_{2}}\]Is 20% at 1 atm. pressure. Calculate \[{{K}_{c}}\] [Kerala (Med.) 2003]
question_answer2) Ammonia under a pressure of 15 atm at 27°C is heated to 347°C in a closed vessel in the presence of a catalyst. Under the conditions, \[N{{H}_{3}}\] is partially decomposed according to the equation, \[2N{{H}_{3}}\]⇌ \[{{N}_{2}}+3{{H}_{2}}\].The vessel is such that the volume remains effectively constant whereas pressure increases to 50 atm. Calculate the percentage of \[N{{H}_{3}}\] actually decomposed. [IIT 1981; MNR 1991; UPSEAT 2001]
question_answer3) Kp for the following reaction at 700 K is \[1.3\times {{10}^{-3}}\] atm-1. The Kc at same temperature for the reaction \[2S{{O}_{2}}+{{O}_{2}}\] \[2S{{O}_{3}}\] will be [AIIMS 2001]
question_answer4) For the reaction \[2N{{O}_{2}}_{(g)}\]⇌\[2N{{O}_{(g)}}+{{O}_{2}}_{(g)}\] \[{{K}_{c}}=1.8\times {{10}^{-6}}\] at 185°C. At 185°C, the value of \[{{K}_{c}}\] for the reaction \[N{{O}_{\left( g \right)}}+\frac{1}{2}{{O}_{2}}_{\left( g \right)}\]⇌\[N{{O}_{2}}_{\left( g \right)}\] is [UPSEAT 2000]
question_answer5) \[2S{{O}_{3}}\]⇌\[2S{{O}_{2}}+{{O}_{2}}\]. If \[{{K}_{c}}=100,\,\,\alpha =1\], half of the reaction is completed, the concentration of \[S{{O}_{3}}\] and \[S{{O}_{2}}\] are equal, the concentration of \[{{O}_{2}}\] is [CPMT 1996]
question_answer6) At 700 K, the equilibrium constant \[{{K}_{p}}\] for the reaction \[2S{{O}_{3(g)}}\]⇌\[2S{{O}_{2(g)}}+{{O}_{2(g)}}\] is \[1.80\times {{10}^{-3}}\] and kPa is 14, (R = 8.314 Jk-1 mol?1). The numerical value in moles per litre of \[{{K}_{c}}\] for this reaction at the same temperature will be [AFMC 2001]
question_answer7) 0.1 mole of \[{{N}_{2}}{{O}_{4(g)}}\] was sealed in a tube under one atmospheric conditions at 25°C. Calculate the number of moles of \[N{{O}_{2(g)}}\] present, if the equilibrium \[{{N}_{2}}{{O}_{4(g)}}\]⇌\[2N{{O}_{2(g)}}\] \[({{K}_{p}}=0.14)\] is reached after some time [UPSEAT 2001]
question_answer8) The partial pressures of \[C{{H}_{3}}OH,\,CO\] and \[{{H}_{2}}\] in the equilibrium mixture for the reaction \[CO+2{{H}_{2}}\]⇌\[CH{}_{3}OH\] at 427°C are 2.0, 1.0 and 0.1 atm respectively. The value of \[{{K}_{P}}\] for the decomposition of \[C{{H}_{3}}OH\] to CO and \[{{H}_{2}}\] is [Roorkee 1999]
question_answer9) One mole of a compound AB reacts with one mole of a compound CD according to the equation AB + CD ⇌ AD + CB. When equilibrium had been established it was found that \[\frac{3}{4}\]mole each of reactant AB and CD had been converted to AD and CB. There is no change in volume. The equilibrium constant for the reaction is [Kerala (Med.) 2003]
question_answer10) For the reaction \[CO(g)+{{H}_{2}}O(g)\]⇌\[C{{O}_{2}}(g)+{{H}_{2}}(g)\] at a given temperature, the equilibrium amount of \[C{{O}_{2}}(g)\] can be increased by [IIT 1998]
question_answer11) At constant temperature, the equilibrium constant (Kp) for the decomposition reaction \[{{N}_{2}}{{O}_{4}}\]⇌\[2N{{O}_{2}}\] is expressed by\[{{K}_{P}}=\frac{(4{{x}^{2}}P)}{(1-{{x}^{2}})}\], where \[P=\] pressure, \[x=\] extent of decomposition. Which one of the following statements is true [IIT Screening 2001]
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