Chemistry-
General
Easy

Question

A system absorbs 'xJ' heat and does "yJ" work Its incrementE is +Ve when

  1. y > x    
  2. x > y    
  3. y = 2x    
  4. x = y    

The correct answer is: x > y

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According to IUPAC conventions, which one of the following is not correct ?

According to IUPAC conventions, which one of the following is not correct ?

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For N subscript 2 end subscript plus 3 H subscript 2 end subscript rightwards arrow 2 N H subscript 3 end subscript,enthalpy and internal energy changes respectively are, incrementH & incrementU then

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Which of the following holds good to the laws of thermodynamics for the reaction C subscript 2 end subscript H subscript 4 end subscript left parenthesis g right parenthesis plus 3 O subscript 2 end subscript left parenthesis g right parenthesis rightwards arrow 2 C O subscript 2 end subscript left parenthesis g right parenthesis plus 2 H subscript 2 end subscript O left parenthesis l right parenthesis

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For which one of the following system ΔE less than ΔH

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The difference between incrementH and incrementE for the reaction B a C l subscript 2 end subscript left parenthesis a q right parenthesis plus K subscript 2 end subscript S O subscript 4 end subscript left parenthesis a q right parenthesis rightwards arrow B a S O subscript 4 end subscript left parenthesis s right parenthesis downwards arrow plus 2 K C l left parenthesis a q right parenthesis

The difference between incrementH and incrementE for the reaction B a C l subscript 2 end subscript left parenthesis a q right parenthesis plus K subscript 2 end subscript S O subscript 4 end subscript left parenthesis a q right parenthesis rightwards arrow B a S O subscript 4 end subscript left parenthesis s right parenthesis downwards arrow plus 2 K C l left parenthesis a q right parenthesis

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Which of the following relationship is correct for a reaction involving both reactants and products are in either solid or liquid state?

Which of the following relationship is correct for a reaction involving both reactants and products are in either solid or liquid state?

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The heat of reaction at constant volume and temperature is represented by

The heat of reaction at constant volume and temperature is represented by

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The free energy profile for the transformation of A in to G is shown below.

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The free energy profile for the transformation of A in to G is shown below.

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The free energy profile for the transformation of A in to G is shown below.

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The free energy profile for the transformation of A in to G is shown below.

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The free energy profile for the transformation of A in to G is shown below.

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The free energy profile for the transformation of A in to G is shown below.

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Figure shows a graph in l o g subscript 10 end subscript invisible function application K v s fraction numerator 1 over denominator text end text T end fraction where K is rate constant and T is temperature. The straight line BC has slope, T a n invisible function application theta equals negative fraction numerator 1 over denominator 2.303 end fraction and an intercept of 5 on y-axis. Thus E subscript a end subscript, the energy of activation is:

Figure shows a graph in l o g subscript 10 end subscript invisible function application K v s fraction numerator 1 over denominator text end text T end fraction where K is rate constant and T is temperature. The straight line BC has slope, T a n invisible function application theta equals negative fraction numerator 1 over denominator 2.303 end fraction and an intercept of 5 on y-axis. Thus E subscript a end subscript, the energy of activation is:

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For an exothermic chemical process occurring in two steps as :
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parallel

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