Advertisements
Advertisements
प्रश्न
Define one calorie.
Advertisements
उत्तर
One calorie is defined as the amount of heat energy needed to raise the temperature of one gram of water by one degree Celsius at a pressure of one atmosphere.
APPEARS IN
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.
Define the internal energy of the system.
Did joule converted mechanical energy to heat energy? Explain.
Can we measure the temperature of the object by touching it?
Give the sign convention for Q and W.
What is a PV diagram?
Explain Joule’s Experiment of the mechanical equivalent of heat.
An ideal gas is allowed to expand in a well insulated container against a constant external pressure of 2.5 bar from an initial volume of 2.50 dm3 to a final volume of 4.50 dm3. The change in internal energy (∆U) of the gas will be ______.
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)
