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AFNS Academic Physics Thermodynamics MCQs Test 4
AFNS Quiz (Physics)
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AFNS Academic Physics Thermodynamics MCQs Test 4

Practice AFNS 2026 Academic Test Physics MCQs from Thermodynamics. Get instant results with Explanation.

Practice Quiz 4 for "Thermodynamics" (Physics). Total 64 MCQs available, split into 7 quizzes. Start with the fundamentals and build a strong base. Mastering these concepts is essential for securing a high percentile in AFNS.

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Conducting Body: Pak Army
Frequency: Annual | Time: 120 Minutes
Negative Marking: No

⚡ Test Pattern (Total: 100 MCQs):

Merit Formula: Typically, the aggregate is calculated as: (AFNS × 50%) + (FSc × 40%) + (Matric × 10%). However, it may have changes for merit calculation formula and admission criteria. Please confirm the official criteria from the offical website.

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1. The latent heat of vaporization of water at 100 °C is about:
2. In a free expansion of an ideal gas into vacuum, the temperature:
3. In a free expansion, the entropy of the gas:
4. The heat required to raise the temperature of 1 kg of a substance by 1 K is called:
5. The heat capacity at constant pressure C_p is related to C_v for an ideal gas as:
6. The efficiency of a real heat engine is always:
7. A heat pump is a device that:
8. The Clausius statement of the second law says that heat cannot spontaneously flow from:
9. The Kelvin-Planck statement says that it is impossible to construct a heat engine that converts heat completely into work with no other effect. This implies that efficiency can never be:
10. The gas constant R has the value:

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