Mark the correct statement 

1. For a chemical reaction to be feasible, ΔG should be zero

2. Entropy is a measure of order in a system

3. For a chemical reaction to be feasible, ΔG should be positive

4. The total energy of an isolated system is constant

Subtopic:  Classification of System, Extensive & Intensive Properties |
 73%
From NCERT
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Internal energy is an example of [Pb. PMT 2000]

(1) Path function

(2) State function

(3) Both (1) and (2)

(4) None of these

Subtopic:  Classification of System, Extensive & Intensive Properties |
 85%
From NCERT
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The intensive property among these quantities is

(1) Enthalpy

(2) Mass/volume

(3) Mass

(4) Volume

Subtopic:  Classification of System, Extensive & Intensive Properties |
 77%
From NCERT
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Which of the following is not a state function?

1. ΔS 2. ΔG
3. ΔH 4. ΔQ
Subtopic:  Classification of System, Extensive & Intensive Properties |
 80%
From NCERT
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Which of the following is true for an adiabatic process [DCE 2002; MP PET 1995, 98, 2004; CPMT 1990; MP PMT 1998, 2002]

1. ΔH = 0

2. ΔW = 0

3. ΔQ = 0

4. ΔV = 0

Subtopic:  Thermodynamics' Properties and process |
 87%
From NCERT
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Which of the following is not a state function 

(1) Internal energy

(2) Enthalpy

(3) Work

(4) Entropy

Subtopic:  Thermodynamics' Properties and process |
 88%
From NCERT
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Among them, intensive property is [AFMC 2004]

1. Mass

2. Volume

3. Surface tension

4. Enthalpy

Subtopic:  Classification of System, Extensive & Intensive Properties |
 80%
From NCERT
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The first law of thermodynamics is a statement of:

1. Conservation of mass

2. Conservation of linear momentum

3. Conservation of energy

4. Conservation of angular momentum

Subtopic:  First Law of Thermodynamics |
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A mixture of two moles of carbon monoxide and one mole of oxygen, in a closed vessel is ignited to convert the carbon monoxide to carbon dioxide. If ΔH is the enthalpy change and ΔE is the change in internal energy, then

(1) ΔH > ΔE

(2) ΔH < ΔE

(3) ΔH = ΔE

(4) The relationship depends on the capacity of the vessel

Subtopic:  First Law of Thermodynamics |
 74%
From NCERT
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The relation between ΔE and ΔH is [MP PET 1992; MP PMT 1996; MP PET/PMT 1998]

1. ΔH=ΔEPΔV

2. ΔH=ΔE+PΔV

3. ΔE=ΔV+ΔH

4. ΔE=ΔH+PΔV

Subtopic:  Enthalpy & Internal energy |
 80%
From NCERT
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