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Q. No.Match the items given in Column-I with those given in Column-II:
Column-I
Column-II
A.
Temperature
i.
Path function
B.
Free energy
ii.
State function
C.
Heat
D.
Work
Options
(A)
(B)
(C)
(D)
1.
i
ii
ii
i
2.
ii
ii
i
i
3.
i
i
ii
i
4.
ii
ii
ii
i
Subtopic: Classification of System, Extensive & Intensive Properties |
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The correct representation for the formation of CH4(g) is:
1. \(\mathrm{C} (diamond )+2 \mathrm{H}_{2}(g) \longrightarrow \mathrm{CH}_{4}(g)\)
2. \(C(graphite) +4 \mathrm{H}{(g)} \longrightarrow \mathrm{CH}_{4}(g)\)
3. \(\mathrm{C} (graphite) +2 \mathrm{H}_{2}(g) \longrightarrow \mathrm{CH}_{4}(g)\)
4. \(C( diamond \left.)+4 \mathrm{H}{\mathrm{(g}}\right) \rightarrow \mathrm{CH}_{4}(g)\)
1. \(\mathrm{C} (diamond )+2 \mathrm{H}_{2}(g) \longrightarrow \mathrm{CH}_{4}(g)\)
2. \(C(graphite) +4 \mathrm{H}{(g)} \longrightarrow \mathrm{CH}_{4}(g)\)
3. \(\mathrm{C} (graphite) +2 \mathrm{H}_{2}(g) \longrightarrow \mathrm{CH}_{4}(g)\)
4. \(C( diamond \left.)+4 \mathrm{H}{\mathrm{(g}}\right) \rightarrow \mathrm{CH}_{4}(g)\)
Subtopic: Thermochemistry |
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For which of the following reaction, \(\Delta H < \Delta E \) ?
| 1. | \(N_2 (g) + 3H_2(g) \rightarrow 2NH_3 (g) \) |
| 2. | \(PCl_5 (g) \rightarrow PCl_3(g) + Cl_2(g) \) |
| 3. | \(H_2 (g) + I_2(g) \rightarrow 2HI(g) \) |
| 4. | \(CaCO_3 (s) \rightarrow CaO (s) + CO_2 (g) \) |
Subtopic: Enthalpy & Internal energy |
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Which of the following is not a state function?
| 1. | H (Enthalpy) | 2. | Q (Heat) |
| 3. | S (Entropy) | 4. | E (Internal Energy) |
Subtopic: Classification of System, Extensive & Intensive Properties |
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The free energy change due to a reaction is zero when :
| 1. | The reactants are initially mixed |
| 2. | A catalyst is added |
| 3. | The system is at an equilibrium |
| 4. | The reactants are completely consumed |
Subtopic: Gibbs Energy Change |
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Subtopic: 2nd & 3rd Law of Thermodynamics |
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NEET - 2022
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Identify correct match using Column I & Column II
| Column I | Column II | ||
| (i) | Spontaneous process | (a) | Isothermal and isobaric process |
| (ii) | \(\Delta H^\circ\) | (b) | \(\Delta H<0 \) |
| (iii) | \(\Delta T=0, \Delta P=0 \) | (c) | \(\Delta G<0 \) |
| (iv) | Exothermic process | (d) | (Bond energy of reactant) - (Bond energy of product) |
| I | II | III | IV | |
| 1. | c | d | a | b |
| 2. | b | a | c | d |
| 3. | d | b | c | d |
| 4. | a | d | b | c |
Subtopic: First Law of Thermodynamics | Spontaneity & Entropy | Gibbs Energy Change |
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An ideal gas undergoes isothermal expansion from 4 L to 20 L against vacuum.
Calculate the amount of heat absorbed during the process:
2. –50 kJ
3. 50 kJ
4. –40 kJ
Subtopic: First Law of Thermodynamics |
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| Assertion (A): | A process for which \(\Delta S_{system} > 0 \) as well as \(\Delta H > 0 \) passes from non-spontaneous to spontaneous state as temperature is increased. |
| Reason (R): | At higher temperatures, \(T \Delta S \) exceeds \(\Delta H \). |
| 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 |
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Given below are two statements:
| Assertion (A): | Mass and volume are extensive properties. |
| Reason (R): | Mass/volume is also 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: Thermodynamics' Properties and process |
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