Is it possible to convert internal energy into work or mechanical energy?
(A) Yes,it is possible to convert internal energy into work or mechanical energy.
According to the first law of thermodynamics,$\Delta Q = \Delta U + \Delta W$.
If a system undergoes an adiabatic process,$\Delta Q = 0$,which implies $\Delta W = -\Delta U$.
This means that any work done by the system $(\Delta W > 0)$ results in a decrease in internal energy $(-\Delta U)$.
Examples include the adiabatic expansion of a gas in a cylinder or the explosion of a bomb,where chemical internal energy is rapidly converted into mechanical kinetic energy.
According to the first law of thermodynamics,$\Delta Q = \Delta U + \Delta W$.
If a system undergoes an adiabatic process,$\Delta Q = 0$,which implies $\Delta W = -\Delta U$.
This means that any work done by the system $(\Delta W > 0)$ results in a decrease in internal energy $(-\Delta U)$.
Examples include the adiabatic expansion of a gas in a cylinder or the explosion of a bomb,where chemical internal energy is rapidly converted into mechanical kinetic energy.
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