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An ideal gas at constant temperature and pressure expands and its
Options
(a) internal energy increases
(b) internal energy decreases
(c) internal energy remains same
(d) endropy increases and then decreases
Correct Answer:
internal energy remains same
Explanation:
Internal energy change (ΔE) is a function of temperature. So for constant temperature, ΔE is also zero i.e., internal energy remains same. [ΔE ∝ T]
Related Questions: - In a period, the elements are arranged in strict sequence of
- Among the following the paramagnetic one is
- A sample of CaCO₃ is 50% pure. On heating 1.12 L of CO₂ at STP is obtained
- The values of heat of formation of SO₂ and SO₃ are -298.2 kJ and -98.2 kJ.
- Phenol is heated with pthalic anhydride in the presence of concentrated H₂SO₄.
Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In a period, the elements are arranged in strict sequence of
- Among the following the paramagnetic one is
- A sample of CaCO₃ is 50% pure. On heating 1.12 L of CO₂ at STP is obtained
- The values of heat of formation of SO₂ and SO₃ are -298.2 kJ and -98.2 kJ.
- Phenol is heated with pthalic anhydride in the presence of concentrated H₂SO₄.
Topics: Thermodynamics (179)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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