Match the following:

List I List II
A. Adiabatic process i. At constant temperature
B. Isolated system ii. No transfer of heat
C. Isothermal change iii. Heat
D. Path function iv. No exchange of energy and matter

                                     
Codes

A B C D
1. ii  iv  iii 
2. iii  iv  i ii
3. iv iii  i ii
4.  iv  ii i iii

Subtopic:  First Law of Thermodynamics | Classification of System, Extensive & Intensive Properties |
 83%
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Match the following process with entropy change

Reaction Entropy change
A. A liquid vaporizes 1. S=0
B. Reaction is non-spontaneous at all temperatures and H is positive 2. S=positive
C. Reversible expansion of an ideal gas 3. S=negative

Codes

A B C
1. 2 3 1
2. 1 2 3
3. 1 3 2
4. 3 2 1
Subtopic:  Spontaneity & Entropy |
 80%
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Match the following parameters with a description for spontaneity.

\(\Delta\) (Parameters) \(\Delta r\ H^⊝\) \(\Delta r\ S^⊝\)\(\Delta r\ G^⊝\) Description
A. + - + 1. Non-spontaneous at high temperature
B. - - + at high T 2. Spontaneous at all temperatures
C. - + - 3. Non-spontaneous at all temperatures

Codes

A B C
1. 3 1 2
2. 1 2 3
3. 1 3 2
4. 3 2 1
Subtopic:  Spontaneity & Entropy |
 75%
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Match the statements given in column 1 with corresponding characteristics given in column II and choose the correct option:

Column -I Column -II
A. Entropy of vaporization 1. Decreases
B. K for a spontaneous process 2. Is always positive
C. Crystalline solid state 3. Lowest entropy
D. \(\Delta U\) in an adiabatic expansion of ideal gas 4. \(\Delta H_{vap} \over T_b\)


Codes

Options: A B C D
1. 2,4 2 3 1
2. 1 2 3 4
3. 1 4,3 3 2
4. 4 3 3,1 2
Subtopic:  Spontaneity & Entropy | Gibbs Energy Change |
 78%
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Select the correct option based on statements given below:
Assertion (A): Combustion of all organic compounds is an exothermic reaction.
Reason (R): The enthalpies of all elements in their standard state are zero.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.
Subtopic:  Thermochemistry |
 77%
From NCERT
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Select the correct option based on statements below:
Assertion (A):   Spontaneous process is an irreversible process and may be reversed by some external agency.
Reason (R):  A decrease in enthalpy is a contributing factor to spontaneity.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.
Subtopic:  Spontaneity & Entropy |
 57%
From NCERT
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Select the correct option based on statements below:
Assertion (A):  A liquid crystallizes into a solid and is accompanied by a decrease in entropy.
Reason (R):  In crystals, molecules organize in an ordered manner.
 
1.  Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.
Subtopic:  Spontaneity & Entropy |
 81%
From NCERT
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Select the correct option based on statements below:
Assertion (A): Cdiamond → Cgraphite ∆H and  ∆U  are the same for this reaction.
Reason (R): Entropy increases during the conversion of diamond to graphite.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Enthalpy & Internal energy |
 64%
From NCERT
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Select the correct option based on statements below:
Assertion (A):  Specific heat is an intensive property.
Reason (R):  Heat capacity is an extensive property.
 
1.  Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Classification of System, Extensive & Intensive Properties |
 71%
From NCERT
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Links
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Select the correct option based on statements below:
Assertion (A): Dissolution of sugar in water proceeds via an increase in entropy.
Reason (R): Entropy decreases, when an egg is boiled hard.
  
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Spontaneity & Entropy |
 63%
From NCERT
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