Question

Based on the first law of thermodynamics, which one of the following is correct?

A. For an isothermal process, q=+w

B. For an isochoric process, ΔU=-q

C. For an adiabatic process, ΔU=-w

D. For a cyclic reaction, q=-w​

Answer 1

Answer:

When a system returns to its original state after completing a series of changes, then it is known that a cycle is completed. This process is known as cyclic process. In a cyclic process the initial and the final state is same. As the internal energy U of the system depends only on the state of the system so in a cyclic process the net change of internal energy, ∆U will be equal to zero i.e. ∆U = 0. Hence from the first law (∆U = Q+W)

Hence, W = – Q

Explanation:

mark me as brainlest answer

Answer 2

Explanation:

answer is D) q=-w for cyclic reaction