- 1(current)
Q. No.Consider the reversible processes for 1.0 mol of an ideal gas as shown in the figure.
w₁, w₂, w₃ and w₄ represent work done (in calories) in the processes 1, 2, 3 and 4, respectively; ΔU₂ and ΔU₄ are changes in the internal energy for the processes 2 and 4, respectively. [use R = 2 cal K⁻¹ mol⁻¹]
The correct option is:
w₁, w₂, w₃ and w₄ represent work done (in calories) in the processes 1, 2, 3 and 4, respectively; ΔU₂ and ΔU₄ are changes in the internal energy for the processes 2 and 4, respectively. [use R = 2 cal K⁻¹ mol⁻¹]
The correct option is:
| 1. | w₁ + w₂ + w₃ + w₄ = 0 |
| 2. | w₁ + w₃ = -2T₁ ln \(\frac{V₂}{V₁}\) - 2T₂ ln \(\frac{V₄}{V₃}\) |
| 3. | w₂ + w₄ = ΔU₂ - ΔU₄ |
| 4. | w₁ + w₂ = 2T₁ ln \(\frac{V₂}{V₁}\) |
Subtopic: Thermodynamics' Properties and process |
Level 3: 35%-60%
NEET - 2026
Please attempt this question first.
Hints
Please attempt this question first.
Match List I with List II.
Choose the correct answer from the options given below:
| List-I (Process) | List-II (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 |
86%
Level 1: 80%+
NEET - 2024
Hints
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?
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 |
73%
Level 2: 60%+
NEET - 2024
Hints
- 1(current)
Q. No.
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