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Design an experiment to show that ammonium chloride undergoes sublimation
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0
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20478
|
March 19, 2018
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On a hot sunny dag why do we feel pleasant sitting under a tree?
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2
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5502
|
May 29, 2017
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Explain giving examples the various factors on which rate of evaporation depends
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1
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25162
|
March 23, 2017
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Pressure and temperature determine the state of a substance. Explain this in detail
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1
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13171
|
March 23, 2017
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With the help of an example, explain how diffusion of gases in water is essential?
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1
|
16545
|
March 23, 2017
|
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How is the high compressibility property of gas useful to us?
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1
|
20618
|
March 23, 2017
|
|
The melting point of ice is 273.16 K. What does this mean? Explain in detail
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1
|
5216
|
March 23, 2017
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Name the factors that affix l evaporation
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1
|
907
|
March 23, 2017
|
|
The temperature at which liquids change into vapours is very high,
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|
1
|
3248
|
March 23, 2017
|
|
On a last sunny day, why do people sprinkle water on the roof or open ground?
|
|
1
|
2409
|
March 23, 2017
|
|
Why arc solids generally denser than liquids and gases?
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|
1
|
7154
|
March 23, 2017
|
|
Cotton in solid but it floats on water. Why?
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|
1
|
14446
|
March 23, 2017
|
|
State the differences between solid, liquid and gas
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|
1
|
18267
|
March 23, 2017
|
|
Why is water liquid at room temperature?
|
|
1
|
17029
|
March 23, 2017
|
|
One kg cotton and one kg sand, which is more denser? Why?
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1
|
6272
|
March 23, 2017
|
|
What are fluids?
|
|
1
|
7561
|
March 23, 2017
|
|
Why is it advisable to use pressure cooker at higher altitudes?
|
|
1
|
8349
|
March 23, 2017
|
|
Distinguish between evaporation and boiling.Explain
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|
1
|
1419
|
March 23, 2017
|
|
Why do people perspire a lot on a hot humid day?
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|
1
|
9624
|
March 23, 2017
|
|
A balloon when kept in sun, bursts after some time. Why?
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1
|
7398
|
March 23, 2017
|
|
Liquids and gases can be compressed but it is difficult to compress solids. Why?
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|
1
|
3303
|
March 23, 2017
|
|
Explain why solids have fixed shape but liquids and gases do not have fixed shape
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|
1
|
5739
|
March 23, 2017
|
|
Why do we see water droplets collected on the outer surface of a glass container,
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|
1
|
2891
|
March 23, 2017
|