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CBSE - XI Science - Physics - Thermal Properties of Matter

Show that Newton's law of cooling is a special ial case of Stefan's law.

Asked by Bhaskar 27th March 2016, 11:14 AM
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CBSE - XI Science - Physics - Thermal Properties of Matter

Assuming no heat loss , the heat released by the condensation of x gm of steam at 100degree centigrade canbe used to convert  y gm of ice at 0 degree centigrade into water at 100 degree centigrade, the ratio of x:y is ? 

Asked by Malavika Umesh 16th May 2015, 1:33 PM
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CBSE - XI Science - Physics - Thermal Properties of Matter

One kilogram of ice at 0 degree celcius is mixed with one kilogram of water at 80 degrees celcius.The final temp of the mixture is(take specific heat of water=4200kJ/kg-degree celcius,Latent heat of ice=336kJ/kg)

Asked by Malavika Umesh 16th May 2015, 11:36 AM
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CBSE - XI Science - Physics - Thermal Properties of Matter

Answer the following: The triple-point of water is a standard fixed point in modern thermometry. Why? What is wrong in taking the melting point of ice and the boiling point of water as standard fixed points (as was originally done in the Celsius scale)?

Asked by Topperlearning User 15th April 2015, 10:39 AM
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CBSE - XI Science - Physics - Thermal Properties of Matter

Define triple point of water. Why is it unique?

Asked by Topperlearning User 15th April 2015, 10:36 AM
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CBSE - XI Science - Physics - Thermal Properties of Matter

MY QUESTION IS THAT:
WHEN IS THE DENSITY OF WATER MINIMUM ?
WATER DENSITY GRAPH-

Asked by Priyadarshini 14th February 2015, 8:50 PM
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CBSE - XI Science - Physics - Thermal Properties of Matter

We know that water has maximum density at 4 degree celsius.
My question is What is  the minimum density of the water ?
                            How to draw the density graph?
                            Under what conditions , does water show minimum density ?

Asked by Priyadarshini 19th December 2014, 7:44 PM
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CBSE - XI Science - Physics - Thermal Properties of Matter

Is it possible that there is no increase in the temperature of a body despite being heated?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Physics - Thermal Properties of Matter

1 Kg of water is at triple point.  What amount of water will be in solid, liquid and vapour phase?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Physics - Thermal Properties of Matter

What do you mean by phase change of matter?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Physics - Thermal Properties of Matter

If a drop of water falls on a hot plate it takes long time to evaporate.  Why?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XI Science - Physics - Thermal Properties of Matter

Why does the inner side of the window pane in a room sweat in cold weather?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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