Question 758: Thermodynamics & KTG

Question

In a thermodynamic system ' $\Delta \mathrm{U}$ ' represents the increase in internal energy and ' $W$ ' the work done by the system. Which of the following statement is true?

Accepted Answer

In an isothermal process, the change in internal energy, $ \Delta U $, is zero. According to the first law of thermodynamics, the relationship is given by:
$ \Delta Q = \Delta U + W $
For an adiabatic process, where no heat is exchanged with the surroundings, the heat transfer, $ \Delta Q $, is zero. Therefore, the equation simplifies to:
$ \Delta U = -W $

Answer

$\Delta \mathrm{U}=-\mathrm{W}$ in an adiabatic process.

Answer

$\Delta \mathrm{U}=\mathrm{W}$ in an isothermal process.

Answer

$\Delta \mathrm{U}=-\mathrm{W}$ in an isothermal process.

Answer

$\Delta \mathrm{U}=\mathrm{W}$ in an adiabatic process.

Thermodynamics & KTG

In a thermodynamic system ' \Delta \mathrm{U} ' represents the increase in internal energy and ' W ' the work done by the system. Which of the following statement is true?

Choose the correct answer: