What are antonyms of spontaneous?

antonyms for spontaneous
  • deliberate.
  • planned.
  • intended.
  • premeditated.

What is the opposite of a spontaneous reaction?

A nonspontaneous reaction is a reaction that does not favor the formation of products at the given set of conditions. In order for a reaction to be nonspontaneous, it must be endothermic, accompanied by a decrease in entropy, or both.

What’s another word for not spontaneous?

What is another word for not spontaneous?
laboredUSlabouredUK
strainedstiff
awkwardoverdone
studiedunconvincing
overwroughtfeigned

What is it called to be spontaneous?

spontaneous, impulsive, instinctive, automatic, mechanical mean acting or activated without deliberation. spontaneous implies lack of prompting and connotes naturalness.

Can you reverse a spontaneous reaction?

Spontaneous processes are irreversible. Like total energy, E, and enthalpy, H, entropy is a state function. The second law of thermodynamics states that the entropy of the universe increases for spontaneous processes, and the entropy of the universe does not change for reversible processes.

Is spontaneous positive or negative?

negative
A spontaneous reaction is one that releases free energy, and so the sign of ΔG must be negative.

What is a spontaneous vs Nonspontaneous reaction?

A spontaneous reaction happens in a given set of conditions without any interruptions. The nonspontaneous reaction takes place with the help of external agents like heat or energy.

What is the difference between spontaneous and non-spontaneous reaction?

A spontaneous process is capable of proceeding in a given direction without needing to be driven by an outside source of energy. An endergonic reaction (also called a nonspontaneous reaction) is a chemical reaction in which the standard change in free energy is positive and energy is absorbed.

What is spontaneous and Nonspontaneous?

A spontaneous process is one that occurs naturally under certain conditions. A nonspontaneous process, on the other hand, will not take place unless it is “driven” by the continual input of energy from an external source.

What is an example of a non-spontaneous reaction?

Suppose a chemical reaction does not take place in a system. In that case, the system can still take energy and undergo a physical process. Such a process is known as a non-spontaneous process. Melting ice into water and boiling water into steam are examples of non-spontaneous processes.

What is needed to reverse the process of spontaneous?

To get the reverse process to occur, the water temperature must be lowered to 0°C. Chemical systems in equilibrium are reversible. In any spontaneous process, the path between reactants and products is irreversible.

Which is not a spontaneous process?

Therefore, flow of heat from a cold body to a hot body is a non-spontaneous process as it requires external work as per Clausius.

What makes a reaction spontaneous?

A reaction is called spontaneous when it takes place of its own accord without any external help. It is an exothermic reaction and it is a spontaneous reaction .

Why spontaneous process is irreversible?

Solution : The spontaneous or natural processes are irreversible in nature because thermodynamic equilibrium of the system is not maintained in such type of processes.

What is spontaneous change?

In chemistry, spontaneous change is change which occurs by itself, without outside assistance.

What is a spontaneous change give one example?

A process which can take place of its own or upon initiation under some condition. eg. Common salt dissolves in water of its own.

Is spoiled food a spontaneous process?

All food spoils. Some deterioration occurs through the spontaneous breakdown of complex organic molecules.

Which of the example is spontaneous process?

A spontaneous process is one that occurs on its own, without any energy input from the outside. For example, a ball will roll down an incline; water will flow downhill; ice will melt into water; radioisotopes will decay; and iron will rust.

Is irreversible process always spontaneous?

An irreversible process is a spontaneous process whose reverse is neither spontaneous nor reversible. That is, the reverse of an irreversible process can never actually occur and is impossible.

Is going up hill spontaneous?

For example a ball rolling down a hill would be spontaneous but rolling up a hill would be non-spontaneous.

Which best describes a spontaneous process?

Which best describes a spontaneous process as it relates to the second law of thermodynamics? It occurs naturally.

Is rusting of iron spontaneous?

Answer and Explanation: No, metal rusting is not an example of a non-spontaneous process. The rusting belongs to the category of a spontaneous process. There is a process of gain that occurs in entropy which makes it highly spontaneous.

Is boiling water spontaneous or Nonspontaneous?

At temperatures above the boiling point, 100oC, the process of liquid water changing to vapour is spontaneous as the process leads to increase in entropy. Below the boiling point, the process in non-spontaneous as it requires energy in form of heat for the process to occur.