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Moksh Bhatnagar
Subject: Science
, asked on 8/5/18
neha by mistake spilled a glass of water on the floor. Her mother suggested her to switch on the fan and after few minutes she found that all water disappears.what are the values associated with her mother
Answer
1
Moksh Bhatnagar
Subject: Science
, asked on 8/5/18
neha by mistake spilled a glass of water on the floor. Her mother suggested her to switch on the fan and after few minutes she found that all water disappears.why her mother suggested to switch on the fan
Answer
3
Anmol Mittal
Subject: Science
, asked on 8/5/18
how much heat energy is required to change 2 kg of ice at 100 C in water at 20 c
Answer
3
Moksh Bhatnagar
Subject: Science
, asked on 7/5/18
how are particles of matter affected with increasing or reducing pressure at a given temperature?
Answer
1
Md. Obaidullah Ansari
Subject: Science
, asked on 6/5/18
Write 40 questions answers of one mark from science chapter 1
Answer
1
Kartik Raj
Subject: Science
, asked on 6/5/18
Name two substances from our daily life which sublime on heating.
Answer
2
Kartik Raj
Subject: Science
, asked on 6/5/18
Q 7
7.
When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance spreads in the whole room quickly. Which characteristic of the particles of matter is illustrated by this observation? Give reason for such observation ?
Answer
2
Kartik Raj
Subject: Science
, asked on 6/5/18
Q.5. What is Brownian motion? Draw a diagram to show the movement of a particle during Brownian motion.
Answer
2
Kartik Raj
Subject: Science
, asked on 6/5/18
Q.27. State the common characteristic of liquid gas.
Answer
2
Kartik Raj
Subject: Science
, asked on 6/5/18
Q.5. Which single term is used to describe the mixing of copper sulphate and water kept in a beaker, on its own?
Answer
1
Kartik Raj
Subject: Science
, asked on 6/5/18
Q.4. Name the scientist who studied the movement of pollen grains suspended in water through a microscope. What is this phenomenon known as?
Answer
1
Kartik Raj
Subject: Science
, asked on 6/5/18
Q20:
20. What is meant by saying that
(a) the latent heat of fusion is ice in 3.34 x 10
5
J/kg ?
(b) the latent heat of yaporization of water is 22.5 x 10
5
J/kg?
Answer
1
Kartik Raj
Subject: Science
, asked on 6/5/18
Write down an activity to prove that particles of matter diffuse faster in gaseous state as compared to solid or liquid state
Answer
2
Aayush Vasishth
Subject: Science
, asked on 5/5/18
Solve this:
Q. What are the physical and chemical properties of matter?
Answer
1
Abdul Rahman Ibrahim
Subject: Science
, asked on 5/5/18
What is bose Einstein condensate? How was it formed?
Answer
1
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What are you looking for?
7. When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance spreads in the whole room quickly. Which characteristic of the particles of matter is illustrated by this observation? Give reason for such observation ?
20. What is meant by saying that
(a) the latent heat of fusion is ice in 3.34 x 105 J/kg ?
(b) the latent heat of yaporization of water is 22.5 x 105 J/kg?
Q. What are the physical and chemical properties of matter?