1. Tardigrade
  2. Question
  3. Chemistry
  4. Which of the following expressions represents the first law of thermodynamics?

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Which of the following expressions represents the first law of thermodynamics?

Chhattisgarh PMTChhattisgarh PMT 2005

Solution:

Consider a system in a state $A$, having internal energy $E_{N}, q$ amount of heat is supplied to system so that the system attains the state $B$, having internal energy $E_{B}$.
Let $W$ is the work done by the system to attain this change, then from first law of thermodynamics.
If $\Delta E=E_{B}-E_{A}$ then $\Delta E=q-W$