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प्रश्न
Can we measure the temperature of the object by touching it?
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उत्तर
No, we can’t measure the temperature of the object touching it. Because the temperature is the degree of hotness or coolness of a body. Only we can sense the hotness or coolness of the object.
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संबंधित प्रश्न
Define the internal energy of the system.
Define one calorie.
Did joule converted mechanical energy to heat energy? Explain.
Give the expression for work done by the gas.
Explain Joule’s Experiment of the mechanical equivalent of heat.
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When a system absorbs 8 kJ of heat and does 2.2 kJ of work on surrounding, calculate the internal energy change.
A gas is allowed to expand in a well insulated container against a constant external pressure of 2.5 Bar from an initial volume of 2.5L to a final volume of 4.5L The change in internal energy, ΔU of the gas will be ______.
The value of Δ U is ______ when 2 kJ of heat is released and 6 kJ of work is done on the system.
Calculate the change in internal energy of a gas if a gas is compressed adiabatically from 25 dm³ to 15 dm³ at constant external pressure of 4 bar.
