Chemistry-
General
Easy
Question
A system absorbs 'xJ' heat and does "yJ" work Its 
E is +Ve when
- y > x
- x > y
- y = 2x
- 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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,enthalpy and internal energy changes respectively are, H & U then
For ,enthalpy and internal energy changes respectively are, H & U then
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For which of the following reaction
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Which of the following holds good to the laws of thermodynamics for the reaction
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When a reaction is conducted in an open vessel, the heat of reaction is represented as
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For which one of the following system
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The difference between H and E for the reaction
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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?
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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.
What is the least stable transition state :
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.
The slowest step in the forward direction:
The free energy profile for the transformation of A in to G is shown below.
The slowest step in the forward direction:
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The free energy profile for the transformation of A in to G is shown below.
The overall reaction is :
The free energy profile for the transformation of A in to G is shown below.
The overall reaction is :
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The reaction 
is of first order both with respect to the persulphate and iodide ions. Taking the initial concentration as ' a ' and 'b' respectively and taking x as the concentration of the triodide at time t a differential rate equation can be written. Two suggested mechanisms for the reaction are
The general differential equation for the above reaction is
The reaction is of first order both with respect to the persulphate and iodide ions. Taking the initial concentration as ' a ' and 'b' respectively and taking x as the concentration of the triodide at time t a differential rate equation can be written. Two suggested mechanisms for the reaction are
The general differential equation for the above reaction is
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Figure shows a graph in 
where K is rate constant and T is temperature. The straight line BC has slope, 
and an intercept of 5 on y-axis. Thus 
, the energy of activation is:
Figure shows a graph in where K is rate constant and T is temperature. The straight line BC has slope, and an intercept of 5 on y-axis. Thus , the energy of activation is:
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For an exothermic chemical process occurring in two steps as :
i) A+B→X (slow)
ii) X→AB( fast 
The progress of the reaction can be best described by :
For an exothermic chemical process occurring in two steps as :
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ii) X→AB( fast
The progress of the reaction can be best described by :
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