What is the significance of the first law of thermodynamics ?

What is the significance of the first law of thermodynamics ?
by

1 Answer

Answer :

The significance of the first law of thermodynamics is mentioned below: It establishes the relationship between heat and work. According to this formula a certain amount of work is required to get a certain amount of work or a certain amount of work is required to get a certain amount of heat. It is impossible to get work or energy without spending anything. Work and heat are equivalent to each other. It is nothing more than a source of energy. The sum of the work done in any system and the change of internal energy is always equal to the applied heat. No device has been invented that is capable of working without fuel or energy, that is, it is not possible to invent an infinitely fast device or to get a job without expending energy.
by

Related questions

The first law of thermodynamics is simply the case of – (1) Charles law (2) Newton's law of cooling (3) The law of heat exchange (4) The law of conservation of energy

Description : The first law of thermodynamics is simply the case of – (1) Charles law (2) Newton's law of cooling (3) The law of heat exchange (4) The law of conservation of energy

Last Answer : (4) The law of conservation of energy Explanation: The first law of thennodynamics is a version of the law of conservation of energy for thermodynamic systems. It states That the change in the internal energy of a system is equal to the heat added to the system plus the work done on the system.

The principle that energy may be converted from one form to another but it cannot be either created or destroyed is: w) First Law of Thermodynamics. x) Second Law of Thermodynamics. y) Third Law of Thermodynamics. z) Principle of photoelectricity.

Description : The principle that energy may be converted from one form to another but it cannot be either created or destroyed is: w) First Law of Thermodynamics. x) Second Law of Thermodynamics. y) Third Law of Thermodynamics. z) Principle of photoelectricity.

Last Answer : ANSWER: W -- FIRST LAW OF THERMODYNAMICS.

The first law of thermodynamics is concerned with the conservation of w) energy x) momentum y) charge z) matter

Description : The first law of thermodynamics is concerned with the conservation of w) energy x) momentum y) charge z) matter

Last Answer : ANSWER: W -- ENERGY

The first law of thermodynamics is simply the case of (1) Charle’s law (2) Newton’s law of cooling (3) The law of heat exchange (4) The law of conservation of energy

Description : The first law of thermodynamics is simply the case of (1) Charle’s law (2) Newton’s law of cooling (3) The law of heat exchange (4) The law of conservation of energy 

Last Answer : The law of conservation of energy

What is the second law of thermodynamics ?

Description : What is the second law of thermodynamics ?

Last Answer : The second law of thermal dynamics has been variously described by different scientists. Of these, the statements of Planck , Kelvin and Clausius are the most famous. These are discussed below: 1 ... an uninterrupted supply of energy by cooling an object from the coldest part of its surroundings.

According to the second law of thermodynamics, energy tends to become more and more unavailable for conversion from: w) thermal to kinetic energy x) kinetic to thermal energy y) thermal to mechanical energy z) mechanical to thermal energy

Description : According to the second law of thermodynamics, energy tends to become more and more unavailable for conversion from: w) thermal to kinetic energy x) kinetic to thermal energy y) thermal to mechanical energy z) mechanical to thermal energy

Last Answer : ANSWER: Y -- THERMAL TO MECHANICAL ENERGY

Why does Science hold the First Law of Thermodynamics so highly when it actually states we could not possibly exist?

Description : Why does Science hold the First Law of Thermodynamics so highly when it actually states we could not possibly exist?

Last Answer : Rewording this would be tricky. Do you suggest “Matter can only be created by God, and cannot be created or destroyed, only changed, by man.”?

Applying the first law of thermodynamics - What do you think about dark energy as a new energy source?

Description : Applying the first law of thermodynamics - What do you think about dark energy as a new energy source?

Last Answer : i honestly think cold fusion will happen before we control DM. And to be honest i think DM and Anti-matter will be one of those things that are going to truly be beyond our time. ... story by 1000ft set of solar panels constantly collecting energy? Talk about killing our dependency on fossil fuels.

The first law of thermodynamics is concerned with the conservation of which thing? -General Knowledge

Description : The first law of thermodynamics is concerned with the conservation of which thing? -General Knowledge

Last Answer : The answer is 'Energy'

The first law of thermodynamics is concerned with the conservation of which thing? -General Knowledge

Description : The first law of thermodynamics is concerned with the conservation of which thing? -General Knowledge

Last Answer : answer:

The first law of thermodynamics is concerned with the conservation of

Description : The first law of thermodynamics is concerned with the conservation of

Last Answer : The first law of thermodynamics is concerned with the conservation of A. Total energy of a ... chemical change D. Mass changes in nuclear reactions

If a refrigerator is a heat pump that follows the first law of thermodynamics how much heat was removed from food inside of the refrigerator if it released 240J of energy to the room?

Description : If a refrigerator is a heat pump that follows the first law of thermodynamics how much heat was removed from food inside of the refrigerator if it released 240J of energy to the room?

Last Answer : Not enough information. The refrigerator must also follow theSecond Law.The energy released to the room is the energy removedfrom the room, PLUS the energy used by the refrigerator (forexample, as electrical energy).

The first law of thermodynamics is concerned with the conservation of which thing?

Description : The first law of thermodynamics is concerned with the conservation of which thing?

Last Answer : Energy

State First Law of thermodynamics.

Description : State First Law of thermodynamics.

Last Answer : Ans. Energy can neither be created nor destroyed. The energy of an isolated system is constant. ∆U=q+ w.

(i)State why heat changes in physical and chemical processes are indicated by enthalpy changes and not by entropy changes? (ii)What are the limitations of First Law of thermodynamics?

Description : (i)State why heat changes in physical and chemical processes are indicated by enthalpy changes and not by entropy changes? (ii)What are the limitations of First Law of thermodynamics?

Last Answer : (i) Most of the processes are carried out in an open system i.e, at constant pressure. (ii)(a) Can’t explain the feasibility of the reaction. (b)It poses no restriction on the direction of flow of heat. (c)Practically it is not possible to convert the heat energy into an equivalent amount of work.

State First law of thermodynamics. Give its mathematical expression.

Description : State First law of thermodynamics. Give its mathematical expression.

Last Answer : Ans. Energy can neither be created nor destroyed but can be transformed from one form to another. ΔU = q + w

First law of thermodynamics is a restatement of which law?

Description : First law of thermodynamics is a restatement of which law?

Last Answer : Ans. Law of conservation of energy.

Bernoulli's equation is dependent on the (A) First law of thermodynamics(B) Third law of thermodynamics(C) Law of conservation of momentum(D) None of these

Description : Bernoulli's equation is dependent on the (A) First law of thermodynamics (B) Third law of thermodynamics (C) Law of conservation of momentum (D) None of these

Last Answer : (D) None of these

The first law of thermodynamics is a restatement of the law of conservation of (A) Mass (B) Energy (C) Momentum (D) None of these

Description : The first law of thermodynamics is a restatement of the law of conservation of (A) Mass (B) Energy (C) Momentum (D) None of these

Last Answer : (B) Energy

First law of thermodynamics is mathematically stated as (A) dQ = dE + dW (B) dQ = dE - dW (C) dE = dQ + dW (D) dW = dQ + dE

Description : First law of thermodynamics is mathematically stated as (A) dQ = dE + dW (B) dQ = dE - dW (C) dE = dQ + dW (D) dW = dQ + dE

Last Answer : First law of thermodynamics is mathematically stated as (A) dQ = dE + dW (B) dQ = dE - dW (C) dE = dQ + dW (D) dW = dQ + dE

_________ law of thermodynamics ascertains the direction of a particular spontaneous process. (A) Zeroth (B) First (C) Second (D) Third

Description : _________ law of thermodynamics ascertains the direction of a particular spontaneous process. (A) Zeroth (B) First (C) Second (D) Third

Last Answer : (C) Second

Which law of the thermodynamics provides basis for measuring the thermodynamic property? (A) First law (B) Zeroth law (C) Third law (D) Second law

Description : Which law of the thermodynamics provides basis for measuring the thermodynamic property? (A) First law (B) Zeroth law (C) Third law (D) Second law

Last Answer : B) Zeroth law

The first law of thermodynamics is a statement of conservation of (A) Heat (B) Momentum (C) Energy (D) Work

Description : The first law of thermodynamics is a statement of conservation of (A) Heat (B) Momentum (C) Energy (D) Work

Last Answer : (C) Energy

First law of thermodynamics deals with the (A) Direction of energy transfer (B) Reversible processes only (C) Irreversible processes only (D) None of these

Description : First law of thermodynamics deals with the (A) Direction of energy transfer (B) Reversible processes only (C) Irreversible processes only (D) None of these

Last Answer : (A) Direction of energy transfer

A refrigerator works on the principle of __________ law of thermodynamics. (A) Zeroth (B) First (C) Second (D) Third

Description : A refrigerator works on the principle of __________ law of thermodynamics. (A) Zeroth (B) First (C) Second (D) Third

Last Answer : (C) Second

Identify the correct statement. (A) Sphlerite is zinc oxide (B) The first law of the thermodynamics is stated as δE = δQ - δW (C) Lead can be produced in a blast furnace (D) T. ferrooxidans is a fungus that can be used for leaching chalcopyrite

Description : Identify the correct statement. (A) Sphlerite is zinc oxide (B) The first law of the thermodynamics is stated as δE = δQ - δW (C) Lead can be produced in a blast furnace (D) T. ferrooxidans is a fungus that can be used for leaching chalcopyrite

Last Answer : Option A

The first law of thermodynamics is concerned with the conservation of which thing?

Description : The first law of thermodynamics is concerned with the conservation of which thing?

Last Answer : Energy

This law of thermodynamics prohibits the construction of a perpetual motion machine “of the second kind”  a. Zeroth Law of Thermodynamics  b. First Law of Thermodynamics  c. Second Law of Thermodynamics  d. Third Law of Thermodynamics

Description : This law of thermodynamics prohibits the construction of a perpetual motion machine “of the second kind”  a. Zeroth Law of Thermodynamics  b. First Law of Thermodynamics  c. Second Law of Thermodynamics  d. Third Law of Thermodynamics

Last Answer : Second Law of Thermodynamics

As temperature goes to “0”, the entropy approaches a constant  a. Zeroth Law of Thermodynamics  b. First Law of Thermodynamics  c. Second Law of Thermodynamics  d. Third Law of Thermodynamics

Description : As temperature goes to “0”, the entropy approaches a constant  a. Zeroth Law of Thermodynamics  b. First Law of Thermodynamics  c. Second Law of Thermodynamics  d. Third Law of Thermodynamics

Last Answer : Third Law of Thermodynamics

If two systems are in the thermal equilibrium with a third system, then they must be in thermal equilibrium with each other.  a. Zeroth Law of Thermodynamics  b. First Law of Thermodynamics  c. Second Law of Thermodynamics  d. Third Law of Thermodynamics

Description : If two systems are in the thermal equilibrium with a third system, then they must be in thermal equilibrium with each other.  a. Zeroth Law of Thermodynamics  b. First Law of Thermodynamics  c. Second Law of Thermodynamics  d. Third Law of Thermodynamics

Last Answer : Zeroth Law of Thermodynamics

Which law that states “Entropy of all perfect crystalline solids is zero at absolute zero temperature”?  a. Zeroth law of thermodynamics  b. First law of thermodynamics  c. Second law of thermodynamics  d. Third law of thermodynamics

Description : Which law that states “Entropy of all perfect crystalline solids is zero at absolute zero temperature”?  a. Zeroth law of thermodynamics  b. First law of thermodynamics  c. Second law of thermodynamics  d. Third law of thermodynamics

Last Answer : Third law of thermodynamics

The first law of thermodynamics is based on which of the following principles?  a. Conservation of mass  b. Conservation of energy  c. Action and reaction  d. The entropy-temperature relationship

Description : The first law of thermodynamics is based on which of the following principles?  a. Conservation of mass  b. Conservation of energy  c. Action and reaction  d. The entropy-temperature relationship

Last Answer : Conservation of energy

The first law of thermodynamics may be expressed in the following equivalent  a. the net heat transfer id equal to the network  b. the sum of the total energy forms leaving the system boundary is always equal to the energy input  c. energy can neither be created nor destroyed but only converted from one form to another  d. all of the above

Description : The first law of thermodynamics may be expressed in the following equivalent  a. the net heat transfer id equal to the network  b. the sum of the total energy forms leaving the system boundary is ... neither be created nor destroyed but only converted from one form to another  d. all of the above

Last Answer : all of the above

It is generally accepted as a law of nature that although one may closely approach 0 Kelvin it is impossible actually to reach it.  a. First Law of thermodynamics  b. Second Law of thermodynamics  c. Third Law of thermodynamics  d. Zeroth Law of thermodynamics

Description : It is generally accepted as a law of nature that although one may closely approach 0 Kelvin it is impossible actually to reach it.  a. First Law of thermodynamics  b. Second Law of thermodynamics  c. Third Law of thermodynamics  d. Zeroth Law of thermodynamics

Last Answer : Third Law of thermodynamics

The first law of thermodynamics is based on which of the following principles?  a. conservation of mass  b. the enthalpy-entropy relationship  c. action – reaction  d. conservation of energy

Description : The first law of thermodynamics is based on which of the following principles?  a. conservation of mass  b. the enthalpy-entropy relationship  c. action – reaction  d. conservation of energy

Last Answer : conservation of energy

The statement “heat cannot by itself flow from one body into a hotter body” is governed by _________.  a. the first law of thermodynamics  b. the second law of thermodynamics  c. the third law of thermodynamics  d. the zeroth law of thermodynamics

Description : The statement “heat cannot by itself flow from one body into a hotter body” is governed by _________.  a. the first law of thermodynamics  b. the second law of thermodynamics  c. the third law of thermodynamics  d. the zeroth law of thermodynamics

Last Answer : the second law of thermodynamics

What law states that entropy can be created but it cannot be destroyed?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Description : What law states that entropy can be created but it cannot be destroyed?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Last Answer : Second law of thermodynamics

What law provides an absolute reference point for the determination of entropy?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Description : What law provides an absolute reference point for the determination of entropy?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Last Answer : Third law of thermodynamics

What states that the entropy of a pure crystalline substance at absolute zero temperature is zero?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Description : What states that the entropy of a pure crystalline substance at absolute zero temperature is zero?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Last Answer : Third law of thermodynamics

Who discovered the thermodynamic property “Entropy” in 1865?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Description : Who discovered the thermodynamic property “Entropy” in 1865?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Last Answer : Second law of thermodynamics

A device that violates the first law of thermodynamics is called a _____.  A. Perpetual-motion machine of the first kind  B. Universal machine of the first kind  C. Ambiguous machine of the first kind  D. Unique machine of the first kind

Description : A device that violates the first law of thermodynamics is called a _____.  A. Perpetual-motion machine of the first kind  B. Universal machine of the first kind  C. Ambiguous machine of the first kind  D. Unique machine of the first kind

Last Answer : Perpetual-motion machine of the first kind

A device that violates either the first law of thermodynamics or the second law of thermodynamics is known as _____.  A. Ambiguous machine  B. Universal machine  C. Perpetual-motion machine  D. Unique machine

Description : A device that violates either the first law of thermodynamics or the second law of thermodynamics is known as _____.  A. Ambiguous machine  B. Universal machine  C. Perpetual-motion machine  D. Unique machine

Last Answer : Perpetual-motion machine

What law states that it is impossible to build a device that operates in a cycle and produces no effect other than the transfer of heat from a lowertemperature body to a highertemperature body?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Description : What law states that it is impossible to build a device that operates in a cycle and produces no effect other than the transfer of heat from a lowertemperature body to a highertemperature body?  A. ... B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Last Answer : Second law of thermodynamics

The first law of thermodynamics is the:  A. Law of conservation of momentum  B. Law of conservation of mass  C. Law of conservation of power  D. Law of conservation of energy

Description : The first law of thermodynamics is the:  A. Law of conservation of momentum  B. Law of conservation of mass  C. Law of conservation of power  D. Law of conservation of energy

Last Answer : Law of conservation of energy

What states that if two bodies are in thermal equilibrium with a third body, they are also in equilibrium with each other?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Description : What states that if two bodies are in thermal equilibrium with a third body, they are also in equilibrium with each other?  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. Third law of thermodynamics

Last Answer : Zeroth law of thermodynamics

The first law of thermodynamics is based on which of the following principles?  A. Conservation of mass  B. Conservation of energy  C. Action and reaction  D. The entropy-temperature relationship

Description : The first law of thermodynamics is based on which of the following principles?  A. Conservation of mass  B. Conservation of energy  C. Action and reaction  D. The entropy-temperature relationship

Last Answer : Conservation of energy

What law asserts that energy has quality as well as quantity?  A. First law of Thermodynamics  B. Second law of Thermodynamics  C. Third law of Thermodynamics  D. Zeroth law of Thermodynamics

Description : What law asserts that energy has quality as well as quantity?  A. First law of Thermodynamics  B. Second law of Thermodynamics  C. Third law of Thermodynamics  D. Zeroth law of Thermodynamics

Last Answer : Second law of Thermodynamics

What law asserts that energy is a thermodynamic property?  A. First law of Thermodynamics  B. Second law of Thermodynamics  C. Third law of Thermodynamics  D. Zeroth law of Thermodynamics

Description : What law asserts that energy is a thermodynamic property?  A. First law of Thermodynamics  B. Second law of Thermodynamics  C. Third law of Thermodynamics  D. Zeroth law of Thermodynamics

Last Answer : First law of Thermodynamics

The measurement of a thermodynamic property known as temperature is based on  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. none of these

Description : The measurement of a thermodynamic property known as temperature is based on  A. Zeroth law of thermodynamics  B. First law of thermodynamics  C. Second law of thermodynamics  D. none of these

Last Answer : Answer: A