1. Tardigrade
  2. Question
  3. Physics
  4. The first law of thermodynamics can be stated in the form Δ U=Δ Q+Δ W Δ U is the increase in the internal energy of the system; Δ Q is the heat supplied to the system; Δ W is the external work done on the system. Which of the quantities Δ U, Δ Q and Δ W are necessarily zero when the system is an ideal gas that undergoes a change at constant temperature?.

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The first law of thermodynamics can be stated in the form $\Delta U=\Delta Q+\Delta W \, \Delta U$ is the increase in the internal energy of the system; $\Delta \,Q$ is the heat supplied to the system; $\Delta\, W$ is the external work done on the system. Which of the quantities $\Delta \,U, \Delta Q$ and $\Delta W$ are necessarily zero when the system is an ideal gas that undergoes a change at constant temperature?.

Thermodynamics

Solution:

$\Delta U=n C_{\nu} \Delta T=0$ if $\Delta T=0$.