NEET Physics: Thermal Properties of Matter — MCQ Test 4

Q6. A \( 0.25 \, \text{kg} \) iron block at \( 300^\circ \text{C} \) is placed in \( 0.8 \, \text{kg} \) water at \( 24^\circ \text{C} \) in a \( 0.05 \, \text{kg} \) silver calorimeter at \( 24^\circ \text{C} \). What is the final temperature? (Specific heat of iron = \( 450 \, \text{J kg}^{-1} \text{K}^{-1} \), water = \( 4186 \, \text{J kg}^{-1} \text{K}^{-1} \), silver = \( 236 \, \text{J kg}^{-1} \text{K}^{-1} \))

Q7. A \( 0.4 \, \text{kg} \) aluminium block at \( 160^\circ \text{C} \) is placed in \( 1.2 \, \text{kg} \) water at \( 28^\circ \text{C} \) in a \( 0.2 \, \text{kg} \) lead calorimeter at \( 28^\circ \text{C} \). What is the final temperature? (Specific heat of aluminium = \( 900 \, \text{J kg}^{-1} \text{K}^{-1} \), water = \( 4186 \, \text{J kg}^{-1} \text{K}^{-1} \), lead = \( 127.7 \, \text{J kg}^{-1} \text{K}^{-1} \))

Q8. Why can’t you open a tightly screwed metal lid until it’s heated in hot water?

Q9. What happens to the temperature of an ideal gas if its volume doubles at constant pressure?

Q10. Why does water in a calorimeter reach a steady temperature when mixed with a hot object?

NEET Physics — Thermal Properties of Matter

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What happens to the pressure of an ideal gas if its volume is halved and temperature is kept constant?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Thermal Properties of Matter. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Pressure, Temperature, Constant, Describes, Transition, and Observed.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. What happens to the pressure of an ideal gas if its volume is halved and temperature is kept constant?

  • A. It halves
  • B. It remains the same
  • C. It doubles
  • D. It triples

Q2. Which process describes the direct transition from solid to gas observed in iodine?

  • A. Melting
  • B. Vaporization
  • C. Condensation
  • D. Sublimation

Q3. A \( 0.1 \, \text{kg} \) lead block at \( 500^\circ \text{C} \) is placed in \( 0.4 \, \text{kg} \) water at \( 26^\circ \text{C} \) in a \( 0.05 \, \text{kg} \) brass calorimeter at \( 26^\circ \text{C} \). What is the final temperature? (Specific heat of lead = \( 127.7 \, \text{J kg}^{-1} \text{K}^{-1} \), water = \( 4186 \, \text{J kg}^{-1} \text{K}^{-1} \), brass = \( 386 \, \text{J kg}^{-1} \text{K}^{-1} \))

  • A. 29°C
  • B. 29.5°C
  • C. 30°C
  • D. 29.6°C

Q4. A \( 0.2 \, \text{kg} \) brass block at \( 350^\circ \text{C} \) is placed in \( 0.5 \, \text{kg} \) water at \( 27^\circ \text{C} \) in a \( 0.1 \, \text{kg} \) iron calorimeter at \( 27^\circ \text{C} \). What is the final temperature? (Specific heat of brass = \( 386 \, \text{J kg}^{-1} \text{K}^{-1} \), water = \( 4186 \, \text{J kg}^{-1} \text{K}^{-1} \), iron = \( 450 \, \text{J kg}^{-1} \text{K}^{-1} \))

  • A. 38°C
  • B. 39°C
  • C. 38.5°C
  • D. 38.3°C

Q5. A \( 0.25 \, \text{kg} \) silver block at \( 150^\circ \text{C} \) is placed in \( 1 \, \text{kg} \) of water at \( 25^\circ \text{C} \) in a \( 0.2 \, \text{kg} \) aluminium calorimeter at \( 25^\circ \text{C} \). What is the final temperature? (Specific heat of silver = \( 236 \, \text{J kg}^{-1} \text{K}^{-1} \), water = \( 4186 \, \text{J kg}^{-1} \text{K}^{-1} \), aluminium = \( 900 \, \text{J kg}^{-1} \text{K}^{-1} \))

  • A. 26°C
  • B. 26.7°C
  • C. 27°C
  • D. 28°C

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