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Q. No.Match List I with List II.
Choose the correct answer from the options given below :
1. \(\text { A-IV, B-II, C-III, D-I }\)
2. \(\text { A-I, B-II, C-III, D-IV }\)
3. \(\text { A-II, B-III, C-IV, D-I }\)
4. \(\text { A-IV, B-III, C-II, D-I }\)
| List I | List II | ||
| (Process) | (Conditions) | ||
| A. | Isothermal process | I. | No heat exchange |
| B. | Isochoric process | II. | Carried out at constant temperature |
| C. | Isobaric process | III. | Carried out at constant volume |
| D. | Adiabatic process | IV. | Carried out at constant pressure |
1. \(\text { A-IV, B-II, C-III, D-I }\)
2. \(\text { A-I, B-II, C-III, D-IV }\)
3. \(\text { A-II, B-III, C-IV, D-I }\)
4. \(\text { A-IV, B-III, C-II, D-I }\)
Subtopic: Thermodynamics' Properties and process |
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NEET - 2024
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In which of the following processes entropy increases?
Choose the correct answer from the options given below :
| A. | A liquid evaporates to vapour. |
| B. | Temperature of a crystalline solid lowered from \(130~\text{K}\) to \(0~\text{K}.\) |
| C. | \(2 \mathrm{NaHCO}_{3(\mathrm{~s})} \rightarrow \mathrm{Na}_2 \mathrm{CO}_{3(\mathrm{~s})}+\mathrm{CO}_{2(\mathrm{~g})}+\mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}\) |
| D. | \(\mathrm{Cl}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{Cl}_{(\mathrm{g})}\) |
| 1. | \(\text { A, B and D }\) | 2. | \(\text { A, C and D }\) |
| 3. | \(\text { C and D }\) | 4. | \(\text { A and C }\) |
Subtopic: Spontaneity & Entropy |
72%
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NEET - 2024
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The work done during reversible isothermal expansion of one mole of hydrogen gas at 25°C from pressure of 20 atmosphere to 10 atmosphere is :
( Given R = 2.0 cal K-1 mol-1)
1. -413.14 calories
2. 413.14 calories
3. 100 calories
4. 0 calorie
( Given R = 2.0 cal K-1 mol-1)
1. -413.14 calories
2. 413.14 calories
3. 100 calories
4. 0 calorie
Subtopic: First Law of Thermodynamics |
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NEET - 2024
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Enthalpy of combustion of carbon to carbon dioxide is \(-390.0~\text{kJ mol}^{-1}.\) The amount of heat released when \(35.0~\text{g}\) of \(\mathrm{CO_2}\) is formed from the reaction of carbon and dioxygen gas, is:
1. \(310~\text{kJ}\)
2. \(490~\text{kJ}\)
3. \(245~\text{kJ}\)
4. \(700~\text{kJ}\)
1. \(310~\text{kJ}\)
2. \(490~\text{kJ}\)
3. \(245~\text{kJ}\)
4. \(700~\text{kJ}\)
Subtopic: Enthalpy & Internal energy |
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NEET - 2024
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Choose the correct statement for the work done in the expansion and heat absorbed or released when 5 liters of an ideal gas at 10 atmospheric pressure isothermally expands into a vacuum until the volume is 15 liters:
| 1. | Both the heat and work done will be greater than zero. |
| 2. | Heat absorbed will be less than zero and work done will be positive. |
| 3. | Work done will be zero and heat will also be zero. |
| 4. | Work done will be greater than zero and heat will remain zero. |
Subtopic: First Law of Thermodynamics |
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NEET - 2024
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For an endothermic reaction:
A. \(q_p \)(heat at constant pressure) is negative.
B. \(\Delta _r H \) (enthalpy change of the reaction) is positive.
C. \(\Delta _r H \) is negative.
D. \(q_p \) is positive.
Which of the following combinations is correct?
1. B and D
2. C and D
3. A and B
4. A and C
A. \(q_p \)(heat at constant pressure) is negative.
B. \(\Delta _r H \) (enthalpy change of the reaction) is positive.
C. \(\Delta _r H \) is negative.
D. \(q_p \) is positive.
Which of the following combinations is correct?
1. B and D
2. C and D
3. A and B
4. A and C
Subtopic: Thermodynamics' Properties and process |
71%
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NEET - 2024
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For the following reaction at 300K
\(\mathrm{A}_2(\mathrm{~g})+3 \mathrm{~B}_2(\mathrm{~g}) \rightarrow 2 \mathrm{AB}_3(\mathrm{~g})\)
the enthalpy change is +15 kJ, then the internal energy change is:
1. 19.98 K J
2. 200 J
3. 1999 J
4. 1.9988 kJ
\(\mathrm{A}_2(\mathrm{~g})+3 \mathrm{~B}_2(\mathrm{~g}) \rightarrow 2 \mathrm{AB}_3(\mathrm{~g})\)
the enthalpy change is +15 kJ, then the internal energy change is:
1. 19.98 K J
2. 200 J
3. 1999 J
4. 1.9988 kJ
Subtopic: Enthalpy & Internal energy |
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NEET - 2024
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What is the correct relationship between changes in enthalpy and internal energy within the following options?
1. \(\Delta \mathrm{H}+\Delta \mathrm{U}=\Delta \mathrm{nR} \)
2. \(\Delta \mathrm{H}=\Delta \mathrm{U -\Delta n_gRT}\)
3. \(\Delta \mathrm{H}=\Delta \mathrm{U+\Delta n_gRT }\)
4. \(\Delta \mathrm{H} -\Delta \mathrm{U=-\Delta n_gRT}\)
1. \(\Delta \mathrm{H}+\Delta \mathrm{U}=\Delta \mathrm{nR} \)
2. \(\Delta \mathrm{H}=\Delta \mathrm{U -\Delta n_gRT}\)
3. \(\Delta \mathrm{H}=\Delta \mathrm{U+\Delta n_gRT }\)
4. \(\Delta \mathrm{H} -\Delta \mathrm{U=-\Delta n_gRT}\)
Subtopic: Enthalpy & Internal energy |
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From NCERT
NEET - 2023
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Consider the following reaction:
\(\mathrm{2H_2(g) + O_2(g) \rightarrow 2H_2O(g) \Delta_rH^\circ = -483.64 kJ. }\)
What is the enthalpy change for the decomposition of one mole of water?
\(\mathrm{2H_2(g) + O_2(g) \rightarrow 2H_2O(g) \Delta_rH^\circ = -483.64 kJ. }\)
What is the enthalpy change for the decomposition of one mole of water?
| 1. | 120.9 kJ | 2. | 241.82 kJ |
| 3. | 18 kJ | 4. | 100 kJ |
Subtopic: Thermochemistry |
87%
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NEET - 2023
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Subtopic: 2nd & 3rd Law of Thermodynamics |
85%
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NEET - 2022
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