EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 14 - Thermal Properties of Matter>TS EAMCET Medical 2019 (8-May Shift-2)>Q 1

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A metal block has a linear expansion coefficient of $8 \times 10^{- 5} ° C^{- 1}$ and its density at $20 ° C$ is $11 g {cm}^{- 3}$ . The approximate temperature at which its density becomes $10 g {cm}^{- 3}$ will be

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Important Questions on Thermal Properties of Matter

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 14 - Thermal Properties of Matter>TS EAMCET Medical 2019 (8-May Shift-2)>Q 2

The area measured on the surface of a solid body of coefficient of linear expansion

α

is

A_{0}

at some initial temperature. If the temperature changes by

Δ T

, the approximate change in area,

Δ A

is

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 14 - Thermal Properties of Matter>TS EAMCET - 10 August 2021 Shift 1>Q 3

Two pieces of rails each of length

20 m

are laid down (end - to -end) when the temperature of surrounding is

25 ° C .

What must be the space left between them to allow expansion when the surrounding temperature goes up to

45 ° C .

[Coefficient of linear expansion for rail is

0.000015 C^{- 1}

]

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 14 - Thermal Properties of Matter>TS EAMCET 2020 (28-Sep Shift-1)>Q 4

50 g

of ice at

0 ° C

is mixed with

50 g

of water at

80 ° C

. If the latent heat of ice is

80 cal g^{- 1}

and specific heat of water is

1 cal g^{- 1} ° C^{- 1}

, then the final temperature of mixture is

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 14 - Thermal Properties of Matter>TS EAMCET - 9 August 2021 Shift 2>Q 5

1 gm

of ice at,

0 ° C

is mixed with,

2 gm

of water at

90 ° C

. Find the final temperature (specific heat capacity of water,

= 1 cal {(gm ° C)}^{- 1}

and latent heat of fusion of ice

=

80 cal {(gm)}^{- 1}

)