How can irreversible changes change?

How can irreversible changes change?
by

1 Answer

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 freezing iron is more difficult, but not impossible.Some people will tell you chemical changes are irreversible, butthat's not true either. Some are easy to reverse, others likeburning wood may seem impossible. I can't take carbon dioxide andwater and turn them into wood, but plants do it all the time.
by

Related questions

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.

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

Description : 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 ... S1is sometimes > Δ SR (C) Δ S1is always > Δ SR (D) Δ S1is always = Δ SR

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

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

The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reactions with low activation energy are: (A) Always irreversible (B) Insensitive to temperature changes (C) Mostly irreversible (D) Highly temperature sensitive

Description : The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reactions with low activation energy are: (A) Always irreversible (B) Insensitive to temperature changes (C) Mostly irreversible (D) Highly temperature sensitive

Last Answer : (B) Insensitive to temperature changes

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 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 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

Fermentation of grapes is considered as a chemical reaction as it is a (a) chemical change (b) sugar in grapes converts into alcohol (c) Irreversible change (d) all the above

Description : Fermentation of grapes is considered as a chemical reaction as it is a (a) chemical change (b) sugar in grapes converts into alcohol (c) Irreversible change (d) all the above

Last Answer : (d) all the above

The mutarotation of glucose is characterized by : (a) a change from an aldehyde to ketone structure. (b) a change of specific rotation from a (+) to a (–) value. (c) the presence of an intramolecular bridge structure. (d) the irreversible change from α-D to the β-D form.

Description : The mutarotation of glucose is characterized by : (a) a change from an aldehyde to ketone structure. (b) a change of specific rotation from a (+) to a (–) value. (c) the presence of an intramolecular bridge structure. (d) the irreversible change from α-D to the β-D form.

Last Answer : the presence of an intramolecular bridge structure.

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)

Description : 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 ... condition is the change in Helmholtz free energy (D) All (A), (B) and (C)

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

Entropy change for an irreversible isolated system is (A) ∞ (B) 0 (C) < 0 (D) > 0

Description : Entropy change for an irreversible isolated system is (A) ∞ (B) 0 (C) < 0 (D) > 0

Last Answer : (D) > 0

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

Description : 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

Last Answer : (B) An isometric process is a constant pressure process

Entropy of a substance remains constant during a/an __________ change. (A) Reversible isothermal (B) Irreversible isothermal (C) Reversible adiabatic (D) None of these

Description : Entropy of a substance remains constant during a/an __________ change. (A) Reversible isothermal (B) Irreversible isothermal (C) Reversible adiabatic (D) None of these

Last Answer : (C) Reversible adiabatic

Generation of heat by friction is an example of a/an __________ change. (A) Isothermal (B) Irreversible (C) Adiabatic (D) Reversible

Description : Generation of heat by friction is an example of a/an __________ change. (A) Isothermal (B) Irreversible (C) Adiabatic (D) Reversible

Last Answer : (B) Irreversible

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

Description : 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 ... to a maximum (D) The entropy of a substance does not remain constant during a reversible adiabatic change

Last Answer : (D) The entropy of a substance does not remain constant during a reversible adiabatic change

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

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

Last Answer : (B) > 0

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?

Description : 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?

Last Answer : Machines that can think for themselves and then eventually rebel. Skynet/Cylons/Geth.

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

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

Last Answer : Here is an excerpt from an article that I found on the Internet: The Sun gives out light, but it also gives out heat energy. This heat energy is focused and concentrated onto the central part of ... with petroleum jelly. I personally don't know anyone that was ever blinded by staring at the sun.

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:

What is the irreversible process ?

Description : What is the irreversible process ?

Last Answer : 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.

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

Last Answer : Give the conect order of initials T(true) or F(false) for following statements [3] I : Lyophobic sols are irreversible ... F C. T T T T D. T T F T

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

Last Answer : In a spontaneous irreversible process the total entropy of the system and surroundings A. Remains constant B. Increases C. Decreases D. Zero

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 ________.

Is All cognitive loss is irreversible?

Description : Is All cognitive loss is irreversible?

Last Answer : Need answer

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

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

Last Answer : Answer : D

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

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

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

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

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

Which of the following is an irreversible inhibitor of cyclooxygenase ? (a) Aspirin (b) Phenylbutazone (c) Indomethacin (d) Piroxicam

Description : Which of the following is an irreversible inhibitor of cyclooxygenase ? (a) Aspirin (b) Phenylbutazone (c) Indomethacin (d) Piroxicam

Last Answer : Ans: A

Which toxic effect of aminoglycoside antibiotics is most irreversible in nature ? (a) Vestibular damage (b) Hearing loss (c) Neuromuscular blockade (d) Kidney damage

Description : Which toxic effect of aminoglycoside antibiotics is most irreversible in nature ? (a) Vestibular damage (b) Hearing loss (c) Neuromuscular blockade (d) Kidney damage

Last Answer : Ans: B

Which form an irreversible complex With haemoglobin of blood?

Description : Which form an irreversible complex With haemoglobin of blood?

Last Answer : Carbon monoxide

Physical absorption is (A) An irreversible phenomenon (B) A reversible phenomenon (C) Accompanied by evolution of heat (D) Both (B) and (C)

Description : Physical absorption is (A) An irreversible phenomenon (B) A reversible phenomenon (C) Accompanied by evolution of heat (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

Chemisorption (chemical adsorption) is (A) Same as "Van der Waals" adsorption (B) Characterised by adsorption of heat (C) An irreversible phenomenon (D) A reversible phenomenon

Description : Chemisorption (chemical adsorption) is (A) Same as "Van der Waals" adsorption (B) Characterised by adsorption of heat (C) An irreversible phenomenon (D) A reversible phenomenon

Last Answer : (C) An irreversible phenomenon

An alkaline solution is used to reduce the concentration of carbon dioxide in a stream from 10% to 0.1% by absorption with irreversible chemical reaction. The overall number of transfer units based on gas phase is: (A) 9.21 (B) 4.605 (C) 100 (D) 0.001

Description : An alkaline solution is used to reduce the concentration of carbon dioxide in a stream from 10% to 0.1% by absorption with irreversible chemical reaction. The overall number of transfer units based on gas phase is: (A) 9.21 (B) 4.605 (C) 100 (D) 0.001

Last Answer : (B) 4.605

Capital budgeting decisions are: A. Reversible B. Irreversible C. Unimportant D. All of the above

Description : Capital budgeting decisions are: A. Reversible B. Irreversible C. Unimportant D. All of the above

Last Answer : B. Irreversible

In which state spaces does the online-dfs-agent will work? a) Irreversible state spaces b) Reversible state spaces c) Searchable state spaces d) All of the mentioned

Description : In which state spaces does the online-dfs-agent will work? a) Irreversible state spaces b) Reversible state spaces c) Searchable state spaces d) All of the mentioned

Last Answer : b) Reversible state spaces

Which of the following is incorrect regarding vasectomy? (a) No sperm occurs in seminal fluid (b) No sperm occurs in epididymis (c) Vasa deferentia is cut and tied (d) Irreversible sterility

Description : Which of the following is incorrect regarding vasectomy? (a) No sperm occurs in seminal fluid (b) No sperm occurs in epididymis (c) Vasa deferentia is cut and tied (d) Irreversible sterility

Last Answer : (b) No sperm occurs in epididymis

Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalysed by (a) phosphofructokinase (b) aldolase (c) hexokinase (d) enolase.

Description : Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalysed by (a) phosphofructokinase (b) aldolase (c) hexokinase (d) enolase.

Last Answer : (c) hexokinase

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

Conversion increases with increase in temperature in case of a/an__________ reaction.(A) Autocatalytic(B) Irreversible(C) Reversible endothermic(D) Reversible exothermic

Description : Conversion increases with increase in temperature in case of a/an__________ reaction. (A) Autocatalytic (B) Irreversible (C) Reversible endothermic (D) Reversible exothermic

Last Answer : (C) Reversible endothermic

An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time. (A) Increase (B) Increase exponentially (C) Decrease (D) Remain unchanged

Description : An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time. (A) Increase (B) Increase exponentially (C) Decrease (D) Remain unchanged

Last Answer : (C) Decrease