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प्रश्न
Name and state the principle used to measure the specific heat capacity of a substance.
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उत्तर
The principle of heat exchange is used to measure the specific heat capacity of a substance.
The principle of heat exchange states that the heat energy lost by the hot object is equal to the heat energy gained by the cold object.
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संबंधित प्रश्न
Specific heat capacity of substance A is 3.8 J g-1K-1 whereas the specific heat capacity of substance B is 0.4 J g-1 K-1
(i) Which of the two is a good conductor of heat?
(ii) How is one led to the above conclusion?
(iii) If substances A and B are liquids then which one would be more useful in car radiators?
Write the expression for the heat energy Q received by the substance when m kg of substance of specific heat capacity c Jkg-1 k-1 is heated through Δt° C.
The S.I. unit of specific heat capacity is ______.
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State the impact of global warming on life on the earth.
What impact will global warming have on the health of the affected population?
Equal heat is given to two objects A and B of mass 1 g. Temperature of A increases by 3°C and B by 5°C. Which object has more specific heat? And by what factor?
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Explain, why temperature in hot summer, falls sharply after a sharp shower?
Is it possible to condense the water formed, back to ice by adding ice at 0°C. Explain with reason.
Give two reasons as to why copper is preferred over other metals for making calorimeters.
State factors on which the amount of heat radiated by a body depends.
Write a short note.
Specific heat capacity
What is specific heat capacity?
For a gas, `"R"/"C"_"v"=0.4`, where R Is universal gas constant and Cv is the molar specific heat at constant volume. The gas is made up of molecules, which are ______
Two uniform brass rods A and B of length land 2l and radii 2r and r respectively are heated to the same temperature. The ratio of the increase in the volume ofB to that of A is ____________.
At same temperature and pressure of an ideal gas, ____________.
Two metals A and B have specific heat capacities in the ratio 2 : 3. If they are supplied the same amount of heat then
Which metal piece will show a greater rise in temperature given their masses is the same?
Conductors have generally high specific heat capacities and insulators have low specific heat capacities.
Which of the following substances (A, B and C) has the highest specific heat?
