The equilibrium states of structural and mechanical systems are characterized by the stationary points of the total potential energy of the system. ... If at a stationary point the potential energy actually has a minimum value, the equilibrium state is called stable .
What is the equilibrium state?
The equilibrium state is one in which there is no net change in the concentrations of reactants and products . ... Nothing could be further from the truth; at equilibrium, the forward and reverse reactions continue, but at identical rates, thereby leaving the net concentrations of reactants and products undisturbed.
What is an equilibrium state Mcq?
The internal equilibrium means that there is no heat flows between the various parts of the system so that they all must have the same temperature . ... All parts of a system in thermal equilibrium have the same temperature.
What is equilibrium state in thermodynamics?
Thermodynamic equilibrium, condition or state of a thermodynamic system, the properties of which do not change with time and that can be changed to another condition only at the expense of effects on other systems .
What are the 3 states of equilibrium?
There are three types of equilibrium: stable, unstable, and neutral .
What is wrong about equilibrium state?
Catalyst has no effect on equilibrium state . The reaction never cease at equilibrium because equilibrium is dynamic in nature.
Which is the correct equilibrium constant expression?
Correct answer:
The equilibrium expression is defined as the ratio of the concentration of products divided by the concentration of the reactants . Each reactant or product is raised to the power corresponding to its coefficient in the balanced chemical equation.
Which is state function?
A state function is a property whose value does not depend on the path taken to reach that specific value . In contrast, functions that depend on the path from two values are call path functions. Both path and state functions are often encountered in thermodynamics.
What does the first law of thermodynamics state?
The first law of thermodynamics states that energy can neither be created nor destroyed, only altered in form . For any system, energy transfer is associated with mass crossing the control boundary, external work, or heat transfer across the boundary. These produce a change of stored energy within the control volume.
What states of equilibrium exist?
At the pressure and temperature of the triple point, all three phases ( solid, liquid and gas ) exist in equilibrium.
What is the example of equilibrium?
An example of equilibrium is in economics when supply and demand are equal . An example of equilibrium is when you are calm and steady. An example of equilibrium is when hot air and cold air are entering the room at the same time so that the overall temperature of the room does not change at all.
What is equilibrium process?
A state of equilibrium exists in a process when the rate of the forward process equals the rate of the reverse process . The equilibrium condition exists in relation to thermal, mechanical, and chemical changes. ... A state of thermal equilibrium exists when the heat loss of a system is equal to the heat gain.
What are the two main conditions for equilibrium?
Conditions for equilibrium require that the sum of all external forces acting on the body is zero ( first condition of equilibrium), and the sum of all external torques from external forces is zero (second condition of equilibrium ). These two conditions must be simultaneously satisfied in equilibrium.
What is the first condition of equilibrium?
The first condition of equilibrium is that the net force in all directions must be zero .
What is natural equilibrium?
The balance of nature (also known as ecological balance) is a theory that proposes that ecological systems are usually in a stable equilibrium or homeostasis, which is to say that a small change (the size of a particular population, for example) will be corrected by some negative feedback that will bring the parameter ...
How does equilibrium change with pressure?
If the pressure is increased, the position of equilibrium moves in the direction of the fewest moles of gas . On the left, there are 3 moles of gas (1 + 2), but on the right there is only 1. Therefore, if the pressure is increased, the position of equilibrium will move to the right and more methanol will be produced.
