Which of the following is not a spontaneous process? [Solved] (2022)

Which of the following 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.... read more ›

(Video) Spontaneous and non spontaneous processes | thermodynamics
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Which of the following is a 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.... view details ›

(Video) Which of the following Process is non-spontaneous
(Doubtnut)

Which is not 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, one or both of the driving forces must favor the reactants over the products.... see details ›

(Video) Which of the following is correct for a spontaneous process?
(Doubtnut)

Which of the given example is not spontaneous process?

Melting ice into water and boiling water into steam are examples of non-spontaneous processes.... read more ›

(Video) Which of the following is correct for a spontaneous process?
(Doubtnut)

When can a process not be spontaneous?

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.... see details ›

(Video) for spontaneous process which of the following is true
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What are examples of spontaneous reactions?

A spontaneous reaction is a reaction that favors the formation of products at the conditions under which the reaction is occurring. A roaring bonfire is an example of a spontaneous reaction, since it is exothermic (there is a decrease in the energy of the system as energy is released to the surroundings as heat).... read more ›

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What is spontaneous example?

The definition of spontaneous is unplanned or done on impulse. An example of spontaneous is waking up and deciding to take a trip across the country that day.... continue reading ›

(Video) The following reaction is non-spontaneous
(Doubtnut)

What is a spontaneous process in chemistry?

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.... see more ›

(Video) Easiest Trick to identify Spontaneous & non spontaneous reaction NEET/JEE
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Is endothermic spontaneous process?

Most endothermic reactions are non-spontaneous; without a steady supply of energy, the reactions typically come to a stop. For example, splitting water into hydrogen and oxygen gas by electrolysis is endothermic -- the reaction produces gas only as long as the electric current is on.... read more ›

(Video) Spontaneous and Non Spontaneous Processes - Class 11
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Is photosynthesis a spontaneous process?

Photosynthesis is not a spontaneous reaction, as indicated by the ΔH of the reaction, which is positive and means that energy input is required for the reaction.... see more ›

(Video) Spontaneous Processes
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Is evaporation a spontaneous process?

Evaporation is a spontaneous process.... see more ›

(Video) Spontaneous and Non-spontaneous process #12 | Thermodynamics | Class 11th, NEET, IIT & JEE
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Is waterfall a spontaneous process?

(d) Water flowing downhill is spontaneous because water will always flow down.... see more ›

Which of the following is not a spontaneous process? [Solved] (2022)

Is melting a spontaneous process?

Heat absorbed by the ice from surrounding is due to set of conditions not due to your intervention. Thus we can consider melting of ice as a spontaneous process(or reaction).... see details ›

Which of the following is true for spontaneous reaction?

Solution : `DeltaG lt 0` is always true for spontaneous process.... see details ›

Is melting spontaneous?

Above the melting point, because of the raised temperature, the changes in enthalpy and entropy combine to produce a negative change in the free energy for melting, so melting is spontaneous (favorable).... continue reading ›

Is fireworks a spontaneous process?

Most spontaneous chemical reactions are exothermic - they release heat and warm up their surroundings: for example: burning wood, fireworks, and alkali metals added to water. When a radioactive atom splits up, it releases energy: this is a spontaneous, exothermic nuclear reaction.... continue reading ›

What are reactions always spontaneous?

A reaction which is exothermic (ΔH negative) and results in an increase in the entropy of the system (ΔS positive) will always be spontaneous.... see details ›

What is spontaneous process Toppr?

Process which takes place itself, without any external aid under the given condition is called spontaneous process. Example: Flow of heat from higher to lower temperature.... continue reading ›

Is boiling water non spontaneous?

At its boiling point liquid and vapour form are in equilibrium. Hence change in free energy is zero and the process is not spontaneous. 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.... continue reading ›

Is water freezing spontaneous or Nonspontaneous?

water exists in liquid state naturally at standard state 25∘c=298k. Hence freezing of H2O at 298k is non-spontaneous as ice will absorb heat from surroundings thereby gets converted to the liquid state as it is a natural process of is irreversible.... view details ›

What is always true for a spontaneous process?

The second law of thermodynamics states that a process involving an isolated system will be spontaneous if the entropy of the system increases over time.... read more ›

What must be true of a spontaneous process?

What must be true of a spontaneous process? Explanation: Change in free energy must always be negative for a spontaneous process. Additionally, Q must be less than K so that the reaction will proceed in the forward reaction, toward equilibrium.... continue reading ›

Which is true for the entropy of a spontaneous reaction Mcq?

Entropy increases for a spontaneous reaction. Explanation: A process is spontaneous if and only if the entropy of Universe increases for a process to be spontaneous ΔS(universe) > 0. At equilibrium, ΔS = 0.... see more ›

Is a spontaneous reaction exothermic?

1 Answer. All spontaneous processes are not exothermic, because it is the Gibbs Free energy that determines spontaneity, not the enthalpy.... continue reading ›

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