When the state of a system changes from A to B adiabatically the work done on the system is 
Joule. If the state of the same system is changed from A to 
by another process, and heat required is 
calories of heat, then find work done on the system in this process? ( 
)
Text Solution
Verified by ExpertsA
The law of conservation of energy holds that an isolated system's total energy
remains constant; energy can be transferred from one form to another, but it cannot be generated or destroyed. The first law is frequently used to describe a thermodynamic process that does not involve the transfer of stuff.
where 
signifies the change in a closed system's internal energy, Q signifies the amount of energy given to the system as heat, and W signifies the amount of thermodynamic work done on the system's surroundings. Perpetual motion machines of the first sort are impossible, to put it another way.
Using Given relation,
Now let us suppose the change in internal energy be 
Hence,
Hence,
Now when we subtract the above 2 equation we get,
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