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NEET Chemistry : સંતુલન

Multiple Choice Questions

91.
bold NH subscript bold 4 bold COONH subscript bold 2 bold left parenthesis bold s bold right parenthesis end subscript bold space bold rightwards harpoon over leftwards harpoon bold space bold 2 bold NH subscript bold 3 bold left parenthesis bold g bold right parenthesis end subscript bold space bold plus bold space bold CO subscript bold 2 bold left parenthesis bold g bold right parenthesis end subscript પ્રક્રિયાનું સંતુલને દબાણ 6 વાતાવરણ હોય, તો પ્રક્રિયાનો સંતુલન અચળાંક kp કેટલો થશે ?
  • 27

  • 4 over 32
  • 32

  • 4 over 27

92. bold 2 bold PQ bold space bold rightwards harpoon over leftwards harpoon bold space bold P subscript bold 2 bold space bold plus bold space bold Q subscript bold 2 bold semicolon bold space bold k subscript bold 1 bold space bold equals bold space bold 2 bold. bold 5 bold space bold cross times bold space bold 10 to the power of bold plus bold 5 end exponent
bold PQ bold space bold plus bold space bold 1 over bold 2 bold R subscript bold 2 bold space bold rightwards harpoon over leftwards harpoon bold space bold PQR bold semicolon bold space bold k subscript bold 2 bold space bold equals bold space bold 5 bold space bold cross times bold space bold 10 to the power of bold minus bold 3 end exponent
ઉપર્યુક્ત પ્રક્રિયાઓ પરથી નીચેની પ્રક્રિયાનો સંતુલન અચળાંક kનું મૂલ્ય કેટલું થશે ?
bold 1 over bold 2 bold P subscript bold 2 bold space bold plus bold space bold 1 over bold 2 bold Q subscript bold 2 bold space bold plus bold space bold 1 over bold 2 bold R subscript bold 2 bold space bold rightwards harpoon over leftwards harpoon bold space bold PQR
  • 5 space cross times space 10 cubed
  • 2.5 space cross times space 10 cubed
  • 1 space cross times space 10 to the power of negative 5 end exponent
  • 2.5 space cross times space 10 to the power of negative 3 end exponent

93. bold 2 bold XY bold space bold rightwards harpoon over leftwards harpoon bold space bold X subscript bold 2 bold plus bold space bold Y subscript bold 2 bold comma bold space bold ΛH bold degree bold space bold equals bold space bold 50 કિજૂલ પ્રક્રિયા માટે કયું વિધાન સાચું છે ?
  • k નું મૂલ્ય XY ના ઉમેરવાથી વધે છે.

  • k નું મૂલ્ય તાપમાનના વધારા સાથે વધે છે. 

  • k નું મૂલ્ય તાપમાનથી સ્વતંત્ર છે.

  • k નું મૂલ્ય તાપમાનના ઘટાડા સાથે ઘટે છે. 


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94.
bold X bold space bold rightwards harpoon over leftwards harpoon bold space bold 2 bold Y અને bold Z bold space bold rightwards harpoon over leftwards harpoon bold space bold P bold space bold plus bold space bold Qપ્રક્રિયાનો સંતુલન અચળાંક અનુક્રમે kp1 અને kp2છે. આ સંતુલન અચળાંકનો ગુણોત્તર 1:9 છે. જો X અને Z નો વિયોજન-અંશ સમાન હોય, તો સંતુલને તેમના કુલ દબાણનો ગુણોત્તર .......... થશે. 
  • 1:36

  • 1:9

  • 1:3

  • 1:3

  • 1:3


A.

1:36

               straight X space space space space space rightwards harpoon over leftwards harpoon with space space space space space space space on top space space space space 2 straight Y space space space space space space space space space space space space straight Z space space space space space space rightwards harpoon over leftwards harpoon with space space space space space space space space on top space space space space space space straight P space space space space space space plus space space space space space straight Q

શરૂઆતમાં    1     -       1          -                        -

સંતુલને       1x  2x      1-x       x                        x

 

Kp subscript 1 space equals space fraction numerator open parentheses begin display style fraction numerator 2 straight x over denominator 1 plus straight x end fraction times straight P subscript 1 end style close parentheses squared over denominator open parentheses fraction numerator 1 minus straight x over denominator 1 plus straight x end fraction times straight P subscript 1 close parentheses end fraction space space space space space space space space space Kp subscript 2 space equals space fraction numerator fraction numerator straight x squared space times space straight P squared subscript 2 over denominator left parenthesis 1 plus straight x right parenthesis squared end fraction over denominator open parentheses begin display style fraction numerator 1 minus straight x over denominator 1 plus straight x end fraction end style times straight P subscript 2 close parentheses end fraction

therefore space Kp subscript 1 space equals space fraction numerator 4 straight x to the power of 4 space times space straight P subscript 1 over denominator left parenthesis 1 minus straight x squared right parenthesis end fraction space space space space space space space space space space Kp subscript 2 space equals space fraction numerator straight x squared space straight P subscript 2 over denominator left parenthesis 1 minus straight x squared right parenthesis end fraction

therefore space space KP subscript 1 over KP subscript 2 space equals space 1 over 9 space equals space fraction numerator 4 straight P subscript 1 over denominator straight P subscript 2 end fraction

therefore space straight P subscript 1 over straight P subscript 2 space equals space 1 over 36

               straight X space space space space space rightwards harpoon over leftwards harpoon with space space space space space space space on top space space space space 2 straight Y space space space space space space space space space space space space straight Z space space space space space space rightwards harpoon over leftwards harpoon with space space space space space space space space on top space space space space space space straight P space space space space space space plus space space space space space straight Q

શરૂઆતમાં    1     -       1          -                        -

સંતુલને       1x  2x      1-x       x                        x

 

Kp subscript 1 space equals space fraction numerator open parentheses begin display style fraction numerator 2 straight x over denominator 1 plus straight x end fraction times straight P subscript 1 end style close parentheses squared over denominator open parentheses fraction numerator 1 minus straight x over denominator 1 plus straight x end fraction times straight P subscript 1 close parentheses end fraction space space space space space space space space space Kp subscript 2 space equals space fraction numerator fraction numerator straight x squared space times space straight P squared subscript 2 over denominator left parenthesis 1 plus straight x right parenthesis squared end fraction over denominator open parentheses begin display style fraction numerator 1 minus straight x over denominator 1 plus straight x end fraction end style times straight P subscript 2 close parentheses end fraction

therefore space Kp subscript 1 space equals space fraction numerator 4 straight x to the power of 4 space times space straight P subscript 1 over denominator left parenthesis 1 minus straight x squared right parenthesis end fraction space space space space space space space space space space Kp subscript 2 space equals space fraction numerator straight x squared space straight P subscript 2 over denominator left parenthesis 1 minus straight x squared right parenthesis end fraction

therefore space space KP subscript 1 over KP subscript 2 space equals space 1 over 9 space equals space fraction numerator 4 straight P subscript 1 over denominator straight P subscript 2 end fraction

therefore space straight P subscript 1 over straight P subscript 2 space equals space 1 over 36


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95.
પ્રક્રિયા bold 2 bold AB subscript bold 2 bold left parenthesis bold g bold right parenthesis end subscript bold space bold rightwards harpoon over leftwards harpoon bold space bold 2 bold AB subscript bold left parenthesis bold g bold right parenthesis end subscript bold space bold plus bold space bold B subscript bold 2 bold left parenthesis bold g bold right parenthesis end subscript માટે વિયોજન-અંશ x નું મૂલ્ય 1 ની સરખામણીમાં ખૂબ ઓછું છે. વિયોજન અચળાંક (x) નો સંતુલન અચળાંક kp અને કુલ દબાણ P સાથેનો સંબંધ દર્શાવતું કયું સમીકરણ સાચું છે ?
  • open parentheses fraction numerator 2 straight k subscript straight p over denominator straight P end fraction close parentheses to the power of begin inline style 1 half end style end exponent

  • open parentheses fraction numerator 2 straight k subscript straight p over denominator straight P end fraction close parentheses to the power of begin inline style 1 third end style end exponent

  • open parentheses fraction numerator 2 straight k subscript straight p over denominator straight P end fraction close parentheses to the power of begin inline style blank end style end exponent

  • open parentheses straight k subscript straight p over straight P close parentheses


96. CaCO3(s) bold rightwards harpoon over leftwards harpoon CaO(S) + CO2(g) સંતુલિત પ્રક્રિયા માટે straight capital lambda subscript straight r straight H degreeનું મૂલ્ય નીચે પૈકી કયા આલેખ પરથી નક્કી કરી શકાય છે ?

97.

bold AB subscript bold left parenthesis bold g bold right parenthesis end subscript bold space bold rightwards harpoon over leftwards harpoon bold space bold A subscript bold left parenthesis bold g bold right parenthesis end subscript bold space bold plus bold space bold B subscript bold left parenthesis bold g bold right parenthesis end subscriptપ્રક્રિયામાં AB નું 33% વિયોજન થાય છે તથા કુલ દબાણ P છે. આથી કુલ દબાણ P, સતુલન અચળાક kp સાથે શું સંબંધ ધરાવે છે ?

  • P = 4kp

  • P = 3kp

  • P = 8kp

  • P = kp


98.

bold A subscript bold g bold space bold plus bold space bold 3 bold B subscript bold left parenthesis bold g bold right parenthesis end subscript bold space bold rightwards harpoon over leftwards harpoon bold space bold 4 bold C subscript bold left parenthesis bold g bold right parenthesis end subscriptપ્રક્રિયા માટે શરૂઆતમાં A અને B ની સાંદ્વતા સમાન છે જ્યારે સંતુલને A અને C ની સાંદ્વતા સમાન છે. તો kc ......... . 

  • 80

  • 0.08

  • 8

  • 0.08


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99. bold NH subscript bold 4 bold HS subscript bold left parenthesis bold s bold right parenthesis end subscript bold space bold rightwards harpoon over leftwards harpoon bold space bold NH subscript bold 3 bold left parenthesis bold g bold right parenthesis end subscript bold space bold plus bold space bold H subscript bold 2 bold S subscript bold left parenthesis bold g bold right parenthesis end subscript પ્રક્રિયાનું સંતુલને અને 300k તાપમાનને દબાણ 100 વાતાવરણ છે, તો સંતુલન અચળાંકનું મૂલ્ય કેટલું થશે ?
  • 200 (વાતાવરણ)2

  • 100 (વાતાવરણ)2

  • 50 (વાતાવરણ)2

  • 2500 (વાતાવરણ)2


100. નિર્બળ બેઇઝ MOHનાં 0.1M જલીય દ્વાવનમાં બેઇઝનું 1 % આયનીકરણ થાય છે. જો 1 લિટર MOH જલીય દ્વાવણમાં 0.2 મોલ MCl ઉમેરવામાં આવે, તો MOH નો આયનીકરણ અચળાંક કેટલો થશે ?
  • 5 space cross times space 10 to the power of negative 5 end exponent
  • 0.005

  • 0.02

  • 2 space cross times space 10 to the power of negative 3 end exponent

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