NEET Physics: Thermal Properties of Matter — MCQ Test 5

Q6. How much heat is needed to convert \( 0.2 \, \text{kg} \) of water at \( 100^\circ \text{C} \) to steam at \( 100^\circ \text{C} \)? (Latent heat of vaporization = \( 2.256 \times 10^6 \, \text{J kg}^{-1} \))

Q7. What is the Kelvin temperature equivalent to \( -23^\circ \text{C} \)?

Q8. Which of the following is true about latent heat during a phase change?

Q9. What is the relationship between the Celsius and Kelvin scales?

Q10. How much heat is required to melt \( 0.3 \, \text{kg} \) of ice at \( 0^\circ \text{C} \) to water at \( 0^\circ \text{C} \)? (Latent heat of fusion = \( 3.33 \times 10^5 \, \text{J kg}^{-1} \))

NEET Physics — Thermal Properties of Matter

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A \( 0.2 \, \text{kg} \) aluminium block at \( 120^\circ \text{C} \) is placed in \( 0.8 \, \text{kg} \) of water at \( 20^\circ \text{C} \) in a \( 0.1 \, \text{kg} \) copper calorimeter at \( 20^\circ \text{C} \). What is the final temperature? (Specific heat of aluminium = \( 900 \, \text{J kg}^{-1} \text{K}^{-1} \), water = \( 4186 \, \text{J kg}^{-1} \text{K}^{-1} \), copper = \( 386 \, \text{J kg}^{-1} \text{K}^{-1} \))

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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 Aluminium, Calorimeter, Temperature, Specific, Decrease, and Difference.

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. A \( 0.2 \, \text{kg} \) aluminium block at \( 120^\circ \text{C} \) is placed in \( 0.8 \, \text{kg} \) of water at \( 20^\circ \text{C} \) in a \( 0.1 \, \text{kg} \) copper calorimeter at \( 20^\circ \text{C} \). What is the final temperature? (Specific heat of aluminium = \( 900 \, \text{J kg}^{-1} \text{K}^{-1} \), water = \( 4186 \, \text{J kg}^{-1} \text{K}^{-1} \), copper = \( 386 \, \text{J kg}^{-1} \text{K}^{-1} \))

  • A. 25°C
  • B. 26°C
  • C. 24°C
  • D. 27°C

Q2. A silver sphere of radius \( 8 \, \text{cm} \) at \( 70^\circ \text{C} \) is cooled to \( 20^\circ \text{C} \). What is the decrease in its volume? (\( \alpha_l = 1.9 \times 10^{-5} \, \text{K}^{-1} \))

  • A. 19 cm³
  • B. 19.2 cm³
  • C. 19.3 cm³
  • D. 19.22 cm³

Q3. What is the key difference between Celsius and Fahrenheit scales at the boiling point of water?

  • A. They use the same value
  • B. Celsius is \( 100^\circ \), Fahrenheit is \( 212^\circ \)
  • C. Celsius is \( 212^\circ \), Fahrenheit is \( 100^\circ \)
  • D. Both are absolute scales

Q4. How much heat is required to convert \( 0.5 \, \text{kg} \) of ice at \( -20^\circ \text{C} \) to water at \( 10^\circ \text{C} \)? (Specific heat of ice = \( 2100 \, \text{J kg}^{-1} \text{K}^{-1} \), latent heat of fusion = \( 3.35 \times 10^5 \, \text{J kg}^{-1} \), specific heat of water = \( 4186 \, \text{J kg}^{-1} \text{K}^{-1} \))

  • A. 208 kJ
  • B. 208.43 kJ
  • C. 210 kJ
  • D. 205 kJ

Q5. A steel rod has a length of \( 1 \, \text{m} \) at \( 20^\circ \text{C} \). What will be its length at \( 120^\circ \text{C} \) if the coefficient of linear expansion of steel is \( 1.2 \times 10^{-5} \, \text{K}^{-1} \)?

  • A. 1.00012 m
  • B. 1.0012 m
  • C. 1.012 m
  • D. 1.002 m

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