Question:
Given statements:
I. An isolated system exchanges matter and energy with surroundings
II. A closed system exchanges only energy with surroundings
III. An open system does not exchange matter or energy
Given statements:
I. An isolated system exchanges matter and energy with surroundings
II. A closed system exchanges only energy with surroundings
III. An open system does not exchange matter or energy
I. An isolated system exchanges matter and energy with surroundings
II. A closed system exchanges only energy with surroundings
III. An open system does not exchange matter or energy
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Closed system = fixed mass, energy can cross boundary.
Updated On: Jun 29, 2026
- Both I and II are correct
- Both II and III are correct
- Only II is correct
- Only III is correct
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Concept:
Thermodynamic systems are classified as:
• Isolated system: No exchange of matter or energy
• Closed system: Exchange of energy only, not matter
• Open system: Exchange of both matter and energy
Step 1: Check Statement I.
Isolated system: \[ \text{No exchange of matter or energy} \] So statement I is false.
Step 2: Check Statement II.
Closed system: \[ \text{Energy exchange allowed, matter not allowed} \] So statement II is true.
Step 3: Check Statement III.
Open system: \[ \text{Both matter and energy exchange occur} \] So statement III is false. Final Answer: \[ \boxed{\text{Only Statement II is correct}} \]
• Isolated system: No exchange of matter or energy
• Closed system: Exchange of energy only, not matter
• Open system: Exchange of both matter and energy
Step 1: Check Statement I.
Isolated system: \[ \text{No exchange of matter or energy} \] So statement I is false.
Step 2: Check Statement II.
Closed system: \[ \text{Energy exchange allowed, matter not allowed} \] So statement II is true.
Step 3: Check Statement III.
Open system: \[ \text{Both matter and energy exchange occur} \] So statement III is false. Final Answer: \[ \boxed{\text{Only Statement II is correct}} \]
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