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प्रश्न
Can we measure the temperature of the object by touching it?
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
The work done in vacuum when 300 m mole of an ideal gas expands until its volume is increased by 2.3 dm3 at 1 bar pressure is ______ mole.
The change in internal energy in a reaction when 2kJ of heat is released by the system and 6 kJ of work is done on the system will be ______.
Are internal energy and heat energy the same? Explain.
Give the sign convention for Q and W.
Give the expression for work done by the gas.
What is a PV diagram?
When a system absorbs 8 kJ of heat and does 2.2 kJ of work on surrounding, calculate the internal energy change.
An ideal gas expands against a constant external pressure of 2.0 atmosphere from 20 litre to 40 litre and absorbs 10 kJ of heat from the surrounding. What is the change in the internal energy of the system?
(Given: 1 atm-litre = 101.3 J)
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.
