Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 4

EASY

9th Telangana Board

IMPORTANT

Earn 100

Convert the following into Kelvin scale (i) $20 ℃$ (ii) $21 ℃$ (iii) $- 273 ℃$ .

Important Questions on Heat

MEDIUM

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 1

How do you appreciate the role of the higher specific heat of water in stabilizing atmospheric temperature during winter and summer seasons?

MEDIUM

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 2

How much energy is transferred when

1 g

of boiling water at

100 ℃

condenses to water at

100 ℃

?

EASY

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 2

How much energy is transferred when

1 g

of boiling water

100 ℃

cools to water at

0 ℃

?

EASY

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 2

How much energy is released or absorbed when

1 g

of water at

0 ℃

freezes to ice at

0 ℃

?

HARD

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 2

How much energy released or absorbed when

1 g

of steam at

100 ℃

cools to ice at

0 ℃

?

MEDIUM

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 11 - Heat>Let us improve our learning>Q 3

Suppose that

1 L

of water is heated for a certain time to rise its temperature for

2 ℃

. If

2 L

of water is heated for the same time, how much of its temperature would rise?

EASY

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 11 - Heat>Multiple choice questions>Q 1

Which of the following is a warming process?

EASY

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 11 - Heat>Multiple choice questions>Q 2

Melting is a process in which solid phase changes to