# Which thermodynamic process takes place when work is done on or by the system but no energy?

## Which thermodynamic process takes place when work is done on or by the system but no energy?

isochoric process
An isobaric expansion of a gas requires heat transfer to keep the pressure constant. An isochoric process is one in which the volume is held constant, meaning that the work done by the system will be zero. The only change will be that a gas gains internal energy.

### Which thermodynamic process takes place if the internal energy of a system remains unchanged?

Isothermal processes are of special interest for ideal gases. This is a consequence of Joule’s second law which states that the internal energy of a fixed amount of an ideal gas depends only on its temperature. Thus, in an isothermal process the internal energy of an ideal gas is constant.

Which thermodynamic process has no work done on the system but heat added and removed from the system?

In an adiabatic process, no heat is added or removed from a system. The first law of thermodynamics is thus reduced to saying that the change in the internal energy of a system undergoing an adiabatic change is equal to -W.

Which is a thermodynamic process in which a system returns to the same conditions under which it started?

This energy is removed from the gas as heat, as indicated by the minus sign preceding the value for Q. A cyclic process is a thermodynamic process in which a system returns to the same conditions under which it started.

## What are thermodynamic processes?

In thermodynamics, types of processes include: Isobaric process in which the pressure (P) is kept constant (ΔP =0). Isochoric process in which the volume (V) is kept constant (ΔV =0). Isothermal process in which the temperature (T) is kept constant (ΔT =0). Adiabatic process in which the heat transfer is zero (Q=0).

### What is the thermodynamic process for ideal gas system?

An ideal gas system undergoes an adiabatic process in which it expands and does 20 J of work on its environment.

What do you mean by thermodynamics process?

A thermodynamic process is defined as a change from one equilibrium macrostate to another macrostate. The initial and final states are the defining elements of the process. In this process energy may be transferred form or into the system and also work can be done by or on the system.

Which thermodynamic process takes place at a constant pressure?

isobaric process
Pressure – volume An isobaric process occurs at constant pressure. An example would be to have a movable piston in a cylinder, so that the pressure inside the cylinder is always at atmospheric pressure, although it is separated from the atmosphere.

## When a thermodynamic system has undergone a cyclic process?

Cyclic Process Thermodynamic – Thermodynamics When a system in a given initial state goes through a number of different changes in state (going through various processes) and finally returns to its initial values, the system has undergone a cyclic process or cycle.

### What is thermodynamic process?

What is thermodynamic system and process?

A thermodynamic system is a specific space or macroscopic region in the universe, whose state can be expressed in terms of pressure, temperature, and volume, and in which one or more than one thermodynamic process occurs. The surroundings, system, and the boundary, together constitute the universe.

When does a system undergo a thermodynamic process?

When a System Undergoes a Thermodynamic Process. A system undergoes a thermodynamic process when there is some sort of energetic change within the system, generally associated with changes in pressure, volume, internal energy, temperature or any sort of heat transfer.

## What makes an isobaric process a thermodynamic process?

An isobaric process is a thermodynamic process, in which the pressure of the system remains constant (p = const). The heat transfer into or out of the system does work, but also changes the internal energy of the system.

### Which is a process that takes place at a constant temp?

-Isothermal process: a thermodynamic process that takes place at constant temp. -Adiabatic process: a thermodynamic process in which no heat transfer between the system and its environment takes place -Cyclic process: a thermodynamic process in which one form of energy is partly converted into another and the remainder is released as heat -Entropy:

How is the first law of thermodynamics written?

The First Law of Thermodynamics. In mathematical terms, the first law of thermodynamics can be written as: delta- U = Q – W or Q = delta- U + W. where. delta-U = system’s change in internal energy. Q = heat transferred into or out of the system. W = work done by or on the system.