Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Short Answer Type Questions>Q 31

HARD

9th CBSE

IMPORTANT

Earn 100

Why does steam cause more severe burns than boiling water?

Important Questions on Matter in Our Surroundings

HARD

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Short Answer Type Questions>Q 32

Which contains more heat,

1 kg

of ice at

0 ° C

or

1 kg

of water at

0 ° C

? Give reason for your answer.

HARD

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Short Answer Type Questions>Q 33

Which contains more heat,

1 kg

of water at

100 ° C

or

1 kg

of steam at

100 ° C

? Give reason for your answer.

HARD

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Short Answer Type Questions>Q 34

Explain why steam at

100^{o} C

is better for heating purposes than boiling water at

100^{o} C

.

HARD

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Short Answer Type Questions>Q 35

Which produces more severe burns: boiling water or steam? Why?

MEDIUM

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Short Answer Type Questions>Q 36

Why does the temperature of a substance remain constant during the change of state?

MEDIUM

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Short Answer Type Questions>Q 37

What is the physical state of water at $0 ° C$ ?

MEDIUM

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Short Answer Type Questions>Q 37

What is the physical state of water at

25 ° C

?

EASY

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 1 - Matter in Our Surroundings>Short Answer Type Questions>Q 37

What is the physical state of water at 100°C?