What is the irreversible process ?

What is the irreversible process ?
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The process that cannot be reversed, that is, the results of heat and work are not equal and opposite in each step of reversal and reversal , is called irreversible process.
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A liquid which is confined inside an adiabatic piston is suddently taken from state `-1` to state `-2` by a single stage irreversible process. If the

Description : A liquid which is confined inside an adiabatic piston is suddently taken from state `-1` to state `-2` by a single stage irreversible process. If the

Last Answer : A liquid which is confined inside an adiabatic piston is suddently taken from state `-1` to state `-2` by a single ... (0)` D. `DeltaU = -3P_(0)V_(0)`

In a spontaneous irreversible process the total entropy of the system and surroundings

Description : In a spontaneous irreversible process the total entropy of the system and surroundings

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Transamination is a (A) Irreversible process(B) Reversible process (C) Both (A) and (B) (D) None of these

Description : Transamination is a (A) Irreversible process(B) Reversible process (C) Both (A) and (B) (D) None of these

Last Answer : Answer : B

Catalytic ammonia synthesis reaction as in Haber's process is (A) Endothermic (B) Exothermic (C) Irreversible (D) None of these

Description : Catalytic ammonia synthesis reaction as in Haber's process is (A) Endothermic (B) Exothermic (C) Irreversible (D) None of these

Last Answer : (B) Exothermic

When a gas in a vessel expands, its internal energy decreases. The process involved is (A) Reversible (B) Irreversible (C) Isothermal (D) Adiabatic

Description : When a gas in a vessel expands, its internal energy decreases. The process involved is (A) Reversible (B) Irreversible (C) Isothermal (D) Adiabatic

Last Answer : (A) Reversible

Pick out the correct statement. (A) The available energy in an isolated system for all irreversible (real) processes decreases (B) The efficiency of a Carnot engine increases, if the sink temperature is decreased (C) The reversible work for compression in non-flow process under isothermal condition is the change in Helmholtz free energy (D) All (A), (B) and (C)

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Last Answer : (D) All (A), (B) and (C)

In an irreversible process (A) Tds = dE - dW = 0 (B) dE - dW - Tds = 0 (C) Tds - dE + dW < 0 (D) Tds - dT + dW < 0

Description : In an irreversible process (A) Tds = dE - dW = 0 (B) dE - dW - Tds = 0 (C) Tds - dE + dW < 0 (D) Tds - dT + dW < 0

Last Answer : (C) Tds - dE + dW < 0

In an irreversible process (A) Tds = dE - dW = 0 (B) dE - dW - Tds = 0 (C) Tds - dE + dW < 0 (D) Tds - dT + dW < 0

Description : In an irreversible process (A) Tds = dE - dW = 0 (B) dE - dW - Tds = 0 (C) Tds - dE + dW < 0 (D) Tds - dT + dW < 0

Last Answer : (C) Tds - dE + dW < 0

Pick out the correct statement. (A) If an insoluble gas is passed through a volatile liquid placed in a perfectly insulated container, the temperature of the liquid will increase (B) A process is irreversible as long as Δ S for the system is greater than zero (C) The mechanical work done by a system is always equal to∫P.dV (D) The heat of formation of a compound is defined as the heat of reaction leading to the formation of the compound from its reactants

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Last Answer : (D) The heat of formation of a compound is defined as the heat of reaction leading to the formation of the compound from its reactants

For an irreversible process involving only pressure-volume work (A) (dF)T, p <0 (B) (dF)T, p = 0 (C) (dF)T, p > 0 (D) (dA)T, v >0

Description : For an irreversible process involving only pressure-volume work (A) (dF)T, p 0 (D) (dA)T, v >0

Last Answer : (A) (dF)T, p

PVy = constant, holds good for an isentropic process, which is (A) Reversible and isothermal (B) Isothermal and irreversible (C) Reversible and adiabatic (D) Adiabatic and irreversible

Description : PVy = constant, holds good for an isentropic process, which is (A) Reversible and isothermal (B) Isothermal and irreversible (C) Reversible and adiabatic (D) Adiabatic and irreversible

Last Answer : C) Reversible and adiabatic

Pick out the wrong statement: (A) The expansion of a gas in vacuum is an irreversible process (B) An isometric process is a constant pressure process (C) Entropy change for a reversible adiabatic process is zero (D) Free energy change for a spontaneous process is negative

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An irreversible process (A) Is the analog of linear frictionless motion in machines (B) Is an idealised visualisation of behaviour of a system (C) Yields the maximum amount of work (D) Yields an amount of work less than that of a reversible process

Description : An irreversible process (A) Is the analog of linear frictionless motion in machines (B) Is an idealised visualisation of behaviour of a system (C) Yields the maximum amount of work (D) Yields an amount of work less than that of a reversible process

Last Answer : (D) Yields an amount of work less than that of a reversible process

Throttling process is a/an __________ process. (A) Reversible and isothermal (B) Irreversible and constant enthalpy (C) Reversible and constant entropy (D) Reversible and constant enthalpy

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Last Answer : (B) Irreversible and constant enthalpy

A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then (where, Δ S1 and Δ SR are the entropy changes of the system for the irreversible and reversible processes respectively) (A) Δ S1is always < Δ SR (B) Δ S1is sometimes > Δ SR (C) Δ S1is always > Δ SR (D) Δ S1is always = Δ SR

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Last Answer : (C) Δ S1is always > Δ SR

Pick out the wrong statement. (A) The net change in entropy in any reversible cycle is always zero (B) The entropy of the system as a whole in an irreversible process increases (C) The entropy of the universe tends to a maximum (D) The entropy of a substance does not remain constant during a reversible adiabatic change

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Entropy change for an irreversible process taking system and surrounding together is (A) 0 (B) > 0 (C) < 0 (D) None of these

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Last Answer : (B) > 0

In a totally irreversible isothermal expansion process for an ideal gas, ΔE = 0, ΔH = 0. Then ΔQ and ΔS will be (A) ΔQ = 0, ΔS=0 (B) ΔQ = 0, ΔS = +ve (C) ΔQ = 0, ΔS = -ve (D) ΔQ = +ve, ΔS= +ve

Description : In a totally irreversible isothermal expansion process for an ideal gas, ΔE = 0, ΔH = 0. Then ΔQ and ΔS will be (A) ΔQ = 0, ΔS=0 (B) ΔQ = 0, ΔS = +ve (C) ΔQ = 0, ΔS = -ve (D) ΔQ = +ve, ΔS= +ve

Last Answer : (B) ΔQ = 0, ΔS = +ve

Ideal process are ________ process  a. Irreversible  b. Reversible  c. Isothermal  d. Isometric

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The term “isentropic process” used in thermodynamics implies what?  A. Reversible adiabatic process  B. Externally reversible, adiabatic process  C. Internally reversible, adiabatic process  D. Irreversible adiabatic process

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The free expansion process is __________ non-flow process.  A. reversible  B. irreversible

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Last Answer : Answer: B

The constant pressure, constant volume and constant pvn processes are regarded as irreversible process.  A. True  B. False

Description : The constant pressure, constant volume and constant pvn processes are regarded as irreversible process.  A. True  B. False

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The entropy __________ in an irreversible cyclic process.  A. remains constant  B. decreases  C. increases

Description : The entropy __________ in an irreversible cyclic process.  A. remains constant  B. decreases  C. increases

Last Answer : Answer: C

There is a loss of heat in an irreversible process.  A.True  B.False

Description : There is a loss of heat in an irreversible process.  A.True  B.False

Last Answer : Answer: A

Which of the following processes is irreversible process  (a) isothermal  (b) adiabatic  (c) throttling  (d) all of the above  (e) none of the above.

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The value of n = 1 in the polytropic process indicates it to be  (a) reversible process  (b) isothermal process  (c) adiabatic process  (d) irreversible process  (e) free expansion process.

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There was the world before the Internet and the world after. What do you think will be the next big thing to have such an irreversible impact on our daily lives?

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How long can you stare at the sun before going blind or suffer irreversible damage?

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What are irreversible inhibitors? -Biology

Description : What are irreversible inhibitors? -Biology

Last Answer : answer:

Which form an irreversible complex With haemoglobin of blood? -Do You Know?

Description : Which form an irreversible complex With haemoglobin of blood? -Do You Know?

Last Answer : answer:

Give the conect order of initials T(true) or F(false) for following statements [3] I : Lyophobic sols are irreversible sols. II : Micelles fonnation t

Description : Give the conect order of initials T(true) or F(false) for following statements [3] I : Lyophobic sols are irreversible sols. II : Micelles fonnation t

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An irreversible or permanent increase in size, mass or volume of a cell, organ or organism is called as ________.

Description : An irreversible or permanent increase in size, mass or volume of a cell, organ or organism is called as ________.

Last Answer : An irreversible or permanent increase in size, mass or volume of a cell, organ or organism is called as ________.

How can irreversible changes change?

Description : How can irreversible changes change?

Last Answer : I'm not quite sure what you mean here. The term irreversiblechange is rather meaningless. Some changes are easier to reversethan others, that's all. Melting and freezing water is fairly easy.Melting and ... 't take carbon dioxide andwater and turn them into wood, but plants do it all the time.

When baking powder and vinegar is mixed is this irreversible or reversible change?

Description : When baking powder and vinegar is mixed is this irreversible or reversible change?

Last Answer : What is the answer ?

Is All cognitive loss is irreversible?

Description : Is All cognitive loss is irreversible?

Last Answer : Need answer

How can irreversible changes change?

Description : How can irreversible changes change?

Last Answer : I'm not quite sure what you mean here. The term irreversiblechange is rather meaningless. Some changes are easier to reversethan others, that's all. Melting and freezing water is fairly easy.Melting and ... 't take carbon dioxide andwater and turn them into wood, but plants do it all the time.

Mixing sand and sugar reversible or irreversible?

Description : Mixing sand and sugar reversible or irreversible?

Last Answer : Irreversible

Shaking together vinegar & oilReversible & irreversible?

Description : Shaking together vinegar & oilReversible & irreversible?

Last Answer : Irreversible

Is dissolving sugar & water reversible or irreversible?

Description : Is dissolving sugar & water reversible or irreversible?

Last Answer : ,irrrversible

Is a volcanic eruption an irreversible change?

Description : Is a volcanic eruption an irreversible change?

Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want

Is a volcanic eruption an irreversible change?

Description : Is a volcanic eruption an irreversible change?

Last Answer : Answers is the place to go to get the answers you need and to ask the questions you want

The only correct statement about hormone receptors is (A) Receptors for protein hormones are present in cytosol (B) Receptors for steroid hormones are membrane bound (C) Hormone-receptor binding is irreversible (D) Receptors can undergo down regulation and up regulatoin

Description : The only correct statement about hormone receptors is (A) Receptors for protein hormones are present in cytosol (B) Receptors for steroid hormones are membrane bound (C) Hormone-receptor binding is irreversible (D) Receptors can undergo down regulation and up regulatoin

Last Answer : Answer : D

An example of enzyme inhibition: (A) Reversible inhibition (B) Irreversible inhibition (C) Allosteric inhibition (D) All of these ENZYMES 151

Description : An example of enzyme inhibition: (A) Reversible inhibition (B) Irreversible inhibition (C) Allosteric inhibition (D) All of these ENZYMES 151

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Description : In case of severe denaturation of protein, there is (A) Reversible denaturation (B) Moderate reversible denaturation (C) Irreversible denaturation (D) None of these

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Denaturation of proteins results in (A) Disruption of primary structure (B) Breakdown of peptide bonds (C) Destruction of hydrogen bonds (D) Irreversible changes in the molecule

Description : Denaturation of proteins results in (A) Disruption of primary structure (B) Breakdown of peptide bonds (C) Destruction of hydrogen bonds (D) Irreversible changes in the molecule

Last Answer : Answer : C

Which one of the following statements concerning glucose metabolism is correct? (A) The conversion of Glucose to lactate occurs only in the R.B.C (B) Glucose enters most cells by a mechanism in which Na+ and glucose are co-transported (C) Pyruvate kinase catalyses an irreversible reaction (D) An elevated level of insulin leads to a decreased level of fructose 2, 6-bisphosphate in hepatocyte

Description : Which one of the following statements concerning glucose metabolism is correct? (A) The conversion of Glucose to lactate occurs only in the R.B.C (B) Glucose enters most cells by a mechanism in ... ) An elevated level of insulin leads to a decreased level of fructose 2, 6-bisphosphate in hepatocyte

Last Answer : C

The irreversible change in any plant part (s) with respect to size, form, weight, volume etc.

Description : The irreversible change in any plant part (s) with respect to size, form, weight, volume etc.

Last Answer : Ans. Growth

Which of the following best describes the mechanism of action of scopolamine ? (a) Irreversible antagonist at nicotinic receptors (b) Irreversible antagonist at muscarinic receptors (c) Physiologic antagonist at muscarinic receptors (d) Reversible antagonist at muscarinic receptors (e) Reversible antagonist at nicotinic receptors

Description : Which of the following best describes the mechanism of action of scopolamine ? (a) Irreversible antagonist at nicotinic receptors (b) Irreversible antagonist at muscarinic receptors (c) ... receptors (d) Reversible antagonist at muscarinic receptors (e) Reversible antagonist at nicotinic receptors

Last Answer : Ans: D

If therapy with multiple drugs causes induction of drug metabolism in your asthma patient, it will (a) Result in increased smooth endoplasmic reticulum (b) Result in increased rough endoplasmic reticulum (c) Result in decreased enzymes in the soluble cytoplasmic fraction (d) Require 3-4 months to reach completion (e) Be irreversible

Description : If therapy with multiple drugs causes induction of drug metabolism in your asthma patient, it will (a) Result in increased smooth endoplasmic reticulum (b) Result in increased rough endoplasmic reticulum ... soluble cytoplasmic fraction (d) Require 3-4 months to reach completion (e) Be irreversible

Last Answer : Ans: A