Q = dE + w is the equation of

Answer: Option A

The equation Q = dE + w represents the First law of thermodynamics, which is a statement of the conservation of energy.

In this equation:

  >>    Q represents the heat energy supplied to the system,
  >>    dE represents the change in internal energy of the system, and
  >>    w represents the work done by or on the system.

The First law of thermodynamics asserts that energy cannot be created or destroyed, only converted from one form to another.

Key Points:
  >>    The First law is a statement about energy conservation in thermodynamic processes.

  >>    Second law of thermodynamics deals with the direction of energy flow and entropy, not the equation Q = dE + w.

  >>    Zeroth law establishes thermal equilibrium but is not related to this equation.