In __________ process, there is an increase in entropy with no degradation of energy. (A) Isothermal expansion (B) Isochoric heat addition (C) Polytropic expansion (D) Isobaric heat addition

In __________ process, there is an increase in entropy with no degradation of energy.
(A) Isothermal expansion
(B) Isochoric heat addition
(C) Polytropic expansion
(D) Isobaric heat addition
by

1 Answer

Answer :

(A) Isothermal expansion
by

Related questions

What is polytropic process ? Under what conditions it approaches isobaric, isothermal, and isometric process ? In which reversible process no work is done ?

Description : What is polytropic process ? Under what conditions it approaches isobaric, isothermal, and isometric process ? In which reversible process no work is done ?

Last Answer : A polytropic process is one that follows the equation pun = constant (index n may have values from – oc to + oo. This process approaches isobaric when n = 0, isothermal when n = 1, and isometric when n = . No work is done in isometric process.

Rankine cycle comprises of two isothermal and two __________ processes. (A) Isobaric (B) Polytropic (C) Isentropic (D) None of these

Description : Rankine cycle comprises of two isothermal and two __________ processes. (A) Isobaric (B) Polytropic (C) Isentropic (D) None of these

Last Answer : (D) None of these

Most cooking activities involve _________ process.  a. Isochoric  b. Isothermal  c. Isobaric  d. Isovolumic

Description : Most cooking activities involve _________ process.  a. Isochoric  b. Isothermal  c. Isobaric  d. Isovolumic

Last Answer : Isobaric

What is a process during which the specific volume remains constant?  A. Isobaric process  B. Isothermal process  C. Isochoric or isometric process  D. Isovolumetric process

Description : What is a process during which the specific volume remains constant?  A. Isobaric process  B. Isothermal process  C. Isochoric or isometric process  D. Isovolumetric process

Last Answer : Isochoric or isometric process

What is a process during which the pressure remains constant?  A. Isobaric process  B. Isothermal process  C. Isochoric process  D. Isometric process

Description : What is a process during which the pressure remains constant?  A. Isobaric process  B. Isothermal process  C. Isochoric process  D. Isometric process

Last Answer : Isobaric process

What is a process during which the temperature remains constant?  A. Isobaric process  B. Isothermal process  C. Isochoric process  D. Isometric process

Description : What is a process during which the temperature remains constant?  A. Isobaric process  B. Isothermal process  C. Isochoric process  D. Isometric process

Last Answer : Isothermal process

A process during which entropy remains constant is called ______ process  A. Isometric  B. Isochoric  C. Isobaric  D. Isentropic

Description : A process during which entropy remains constant is called ______ process  A. Isometric  B. Isochoric  C. Isobaric  D. Isentropic

Last Answer : Isentropic

When the expansion of compression of gas takes place without transfer of heat to or from the gas the process is called  a. reversible  b. adiabatic  c. polytropic  d. isothermal

Description : When the expansion of compression of gas takes place without transfer of heat to or from the gas the process is called  a. reversible  b. adiabatic  c. polytropic  d. isothermal

Last Answer : adiabatic

The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible __________ process. (A) Isobaric (B) Isothermal (C) Adiabatic (D) None of these

Description : The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible __________ process. (A) Isobaric (B) Isothermal (C) Adiabatic (D) None of these

Last Answer : (B) Isothermal

In the equation, PVn = constant, if the value of n = 1, then it represents a reversible __________ process. (A) Isothermal (B) Isobaric (C) Polytropic (D) Adiabatic

Description : In the equation, PVn = constant, if the value of n = 1, then it represents a reversible __________ process. (A) Isothermal (B) Isobaric (C) Polytropic (D) Adiabatic

Last Answer : (A) Isothermal

Change of state namely evaporation condensation, freezing and melting is an __________ process. (A) Isothermal (B) Adiabatic (C) Isobaric (D) Isochoric

Description : Change of state namely evaporation condensation, freezing and melting is an __________ process. (A) Isothermal (B) Adiabatic (C) Isobaric (D) Isochoric

Last Answer : (A) Isothermal

Heating of water under atmospheric pressure is an __________ process. (A) Isochoric (B) Isobaric (C) Adiabatic (D) Isothermal

Description : Heating of water under atmospheric pressure is an __________ process. (A) Isochoric (B) Isobaric (C) Adiabatic (D) Isothermal

Last Answer : (B) Isobaric

When the expansion of compression of gas takes place without transfer of heat or from the gas the process is called;  a. Isometric process  b. Isothermal process  c. Isobaric process  d. Adiabatic process

Description : When the expansion of compression of gas takes place without transfer of heat or from the gas the process is called;  a. Isometric process  b. Isothermal process  c. Isobaric process  d. Adiabatic process

Last Answer : Adiabatic process

A thermodynamic process in which entropy is conserved  a. isentropic  b. adiabatic  c. isothermal  d. polytropic

Description : A thermodynamic process in which entropy is conserved  a. isentropic  b. adiabatic  c. isothermal  d. polytropic

Last Answer : isentropic

If there is no heat transferred during the process, it is called a ______ process.  A. Static  B. Isobaric  C. Polytropic  D. Adiabatic

Description : If there is no heat transferred during the process, it is called a ______ process.  A. Static  B. Isobaric  C. Polytropic  D. Adiabatic

Last Answer : Adiabatic

A process, in which the temperature of the working substance remains constant during its expansion or compression, is called  A. isothermal process  B. hyperbolic process  C. adiabatic process  D. polytropic process

Description : A process, in which the temperature of the working substance remains constant during its expansion or compression, is called  A. isothermal process  B. hyperbolic process  C. adiabatic process  D. polytropic process

Last Answer : Answer: A

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.

Description : 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.

Last Answer : Answer : b

Represent Isobaric, Isochoric, Isothermal, Adiabatic process on P-V and T-S diagram.

Description : Represent Isobaric, Isochoric, Isothermal, Adiabatic process on P-V and T-S diagram.

Last Answer : Isobaric process Isothermal process Isochoric process Adiabatic process:

The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction

Description : The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction

Last Answer : (1) Adiabatic compression and rarefaction Explanation: Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the ... . Through solids, however, it can be transmitted as both longitudinal waves and transverse waves.

The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction

Description : The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction

Last Answer : (1) Adiabatic compression and rarefaction Explanation: Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within ... is transmitted through gases, plasma, and liquids as longitudinal waves, also called compression waves.

A Carnot cycle consists of the following steps: (A) Two isothermal and two isentropic (B) Two isobaric and two isothermal (C) Two isochoric and two isobaric (D) Two isothermals and two isochoric

Description : A Carnot cycle consists of the following steps: (A) Two isothermal and two isentropic (B) Two isobaric and two isothermal (C) Two isochoric and two isobaric (D) Two isothermals and two isochoric

Last Answer : A) Two isothermal and two isentropic

The propagation of sound waves in a gas involves (1) adiabatic compression and rarefaction (2) isothermal compression and rarefaction (3) isochoric compression and rarefaction (4) isobaric compression and rarefaction

Description : The propagation of sound waves in a gas involves (1) adiabatic compression and rarefaction (2) isothermal compression and rarefaction (3) isochoric compression and rarefaction (4) isobaric compression and rarefaction

Last Answer : adiabatic compression and rarefaction

No volume changes occur during this type of process  a. Isobaric process  b. Isomillimetric process  c. Isocaloric process  d. Isochoric process

Description : No volume changes occur during this type of process  a. Isobaric process  b. Isomillimetric process  c. Isocaloric process  d. Isochoric process

Last Answer : Isochoric process

An adiabatic process in which there is no change in system enthalpy but for which there is a significant decrease in pressure is called _____.  A. Isochoric process  B. Isobaric process  C. Throttling process  D. Quasistatic process

Description : An adiabatic process in which there is no change in system enthalpy but for which there is a significant decrease in pressure is called _____.  A. Isochoric process  B. Isobaric process  C. Throttling process  D. Quasistatic process

Last Answer : Throttling process

Which of the following engines is the most efficient?  a. Isobaric expansion  b. Adiabatic compression  c. Adiabatic expansion  d. Isothermal expansion

Description : Which of the following engines is the most efficient?  a. Isobaric expansion  b. Adiabatic compression  c. Adiabatic expansion  d. Isothermal expansion

Last Answer : Isobaric expansion

One for which no heat is gained or lost  a. Isentropic  b. Adiabatic  c. Isothermal  d. Polytropic

Description : One for which no heat is gained or lost  a. Isentropic  b. Adiabatic  c. Isothermal  d. Polytropic

Last Answer : Adiabatic

The boiling of water into steam in an open container is an example of a/an _________ process.  a. adiabatic  b. isochoric  c. isobaric  d. zero work

Description : The boiling of water into steam in an open container is an example of a/an _________ process.  a. adiabatic  b. isochoric  c. isobaric  d. zero work

Last Answer : isobaric

In the equation, PVn = constant, if the value of n is in between 1 and y (i.e. Cp/Cv), then it represents a reversible __________ process. (A) Isometric (B) Polytropic (C) Isentropic (D) Isobaric

Description : In the equation, PVn = constant, if the value of n is in between 1 and y (i.e. Cp/Cv), then it represents a reversible __________ process. (A) Isometric (B) Polytropic (C) Isentropic (D) Isobaric

Last Answer : (B) Polytropic

_________ is a thermodynamic potential that measures the “useful” or process-initiating work obtainable from an isothermal, isobaric thermodynamic system.  a. Du-Pont Potential  b. Gibbs free energy  c. Rabz-Eccles Energy  d. Claussius Energy

Description : _________ is a thermodynamic potential that measures the “useful” or process-initiating work obtainable from an isothermal, isobaric thermodynamic system.  a. Du-Pont Potential  b. Gibbs free energy  c. Rabz-Eccles Energy  d. Claussius Energy

Last Answer : Gibbs free energy

What is another term used for isometric processes?  a. Isochoric process  b. Iolytropic process  c. Isothermal process  d. Reversible process

Description : What is another term used for isometric processes?  a. Isochoric process  b. Iolytropic process  c. Isothermal process  d. Reversible process

Last Answer : Isochoric process

If value of n is infinitely large in a polytropic process pV” = C, then the process is known as constant  (a) volume  (b) pressure  (c) temperature  (d) enthalpy  (e) entropy

Description : If value of n is infinitely large in a polytropic process pV” = C, then the process is known as constant  (a) volume  (b) pressure  (c) temperature  (d) enthalpy  (e) entropy

Last Answer : Answer : a

Another name of reversible adiabatic process  a. Isentropic Process  b. Isometric Process  c. Isobaric Process  d. Isothermal Process

Description : Another name of reversible adiabatic process  a. Isentropic Process  b. Isometric Process  c. Isobaric Process  d. Isothermal Process

Last Answer : Isentropic Process

Isochoric process is one in which  (a) free expansion takes place  (b) very little mechanical work is done by the system  (c) no mechanical work is done by the system  (d) all parameters remain constant

Description : Isochoric process is one in which  (a) free expansion takes place  (b) very little mechanical work is done by the system  (c) no mechanical work is done by the system  (d) all parameters remain constant

Last Answer : Answer : c

Occurring at fixed temperature  a. isentropic  b. Adiabatic  c. Isothermal  d. polytropic

Description : Occurring at fixed temperature  a. isentropic  b. Adiabatic  c. Isothermal  d. polytropic

Last Answer : Isothermal

In polytropic process (PV n = constant), if n = 1; it means a/an __________ process. (A) Adiabatic (B) Reversible (C) Isothermal (D) None of these

Description : In polytropic process (PV n = constant), if n = 1; it means a/an __________ process. (A) Adiabatic (B) Reversible (C) Isothermal (D) None of these

Last Answer : (C) Isothermal

In the equation PVn = constant, if the value of n = y = Cp/Cv, then it represents a reversible __________ process. (A) Isothermal (B) Adiabatic (C) Isentropic (D) Polytropic

Description : In the equation PVn = constant, if the value of n = y = Cp/Cv, then it represents a reversible __________ process. (A) Isothermal (B) Adiabatic (C) Isentropic (D) Polytropic

Last Answer : (C) Isentropic

An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section. (A) Adiabatic (B) Isothermal (C) Isentropic (D) Isochoric

Description : An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section. (A) Adiabatic (B) Isothermal (C) Isentropic (D) Isochoric

Last Answer : (B) Isothermal

Name the state variables that remain constant in isobaric and isochoric process.

Description : Name the state variables that remain constant in isobaric and isochoric process.

Last Answer : Ans. Pressure and Volume .

During which of the following process does heat rejection takes place in Carnot cycle?  A. Isothermal expansion  B. Isentropic expansion  C. Isothermal compression  D. Isentropic compression

Description : During which of the following process does heat rejection takes place in Carnot cycle?  A. Isothermal expansion  B. Isentropic expansion  C. Isothermal compression  D. Isentropic compression

Last Answer : Answer: C

PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process. (A) Isothermal (B) Isentropic (C) Isobaric (D) Adiabatic

Description : PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process. (A) Isothermal (B) Isentropic (C) Isobaric (D) Adiabatic

Last Answer : (D) Adiabatic

In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible __________ process. (A) Isobaric (B) Isothermal (C) Isentropic (D) Isometric

Description : In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible __________ process. (A) Isobaric (B) Isothermal (C) Isentropic (D) Isometric

Last Answer : (A) Isobaric

A ______ is a flow in which the gas flow is adiabatic and frictionless and entropy change is zero.  A. Isentropic flow  B. Isobaric flow  C. Steady flow  D. Uniform flow

Description : A ______ is a flow in which the gas flow is adiabatic and frictionless and entropy change is zero.  A. Isentropic flow  B. Isobaric flow  C. Steady flow  D. Uniform flow

Last Answer : Isentropic flow

In a single stage reciprocating air compressor, the work done on air to compressor is from suction pressure to delivery pressure will be minimum when the compression is A. Isothermal process B. Adiabatic process C. Polytropic process D. Constant pressure process.

Description : In a single stage reciprocating air compressor, the work done on air to compressor is from suction pressure to delivery pressure will be minimum when the compression is A. Isothermal process B. Adiabatic process C. Polytropic process D. Constant pressure process.

Last Answer : ANSWER : A

The expression for entropy change given by, ΔS = - nR ln (P2/P1), holds good for (A) Expansion of a real gas (B) Reversible isothermal volume change (C) Heating of an ideal gas (D) Cooling of a real gas

Description : The expression for entropy change given by, ΔS = - nR ln (P2/P1), holds good for (A) Expansion of a real gas (B) Reversible isothermal volume change (C) Heating of an ideal gas (D) Cooling of a real gas

Last Answer : (B) Reversible isothermal volume change

The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCvln (T2/T1) is valid for (A) Reversible isothermal volume change (B) Heating of a substance (C) Cooling of a substance (D) Simultaneous heating and expansion of an ideal gas

Description : The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCvln (T2/T1) is valid for (A) Reversible isothermal volume change (B) Heating of a substance (C) Cooling of a substance (D) Simultaneous heating and expansion of an ideal gas

Last Answer : (D) Simultaneous heating and expansion of an ideal gas

A cycle tyre bursts suddenly. This represents an – (1) Isothermal process (2) Adiabatic process (3) Isochoric process (4) Isoboric process

Description : A cycle tyre bursts suddenly. This represents an – (1) Isothermal process (2) Adiabatic process (3) Isochoric process (4) Isoboric process

Last Answer : (2) Adiabatic process Explanation: When a tyre bursts suddenly energy is not immediately transferred between the system and the surrounding. So the process is adiabatic. There sudden expansion of its air ... tyre is cooled. In adiabatic process, heat neither enters the system nor leaves the system.

A cycle tyre bursts suddenly. This represents an : (1) Isothermal process (2) Adiabatic process (3) Isochoric process (4) Isoboric process

Description : A cycle tyre bursts suddenly. This represents an : (1) Isothermal process (2) Adiabatic process (3) Isochoric process (4) Isoboric process

Last Answer : Adiabatic process

Blowing Air with open pipe is an example of – (1) isothermal process (2) isochroric process (3) Isobaric process (4) Adiabatic process

Description : Blowing Air with open pipe is an example of – (1) isothermal process (2) isochroric process (3) Isobaric process (4) Adiabatic process

Last Answer : (3) Isobaric process Explanation: When air is suddenly exhaled out into a larger volume through the narrow opening, air undergo adiabatic expansion. So blowing air is an adiabatic process. But since it is open pipe, the pressure inside and pressure outside remains same.

Which of the following non-flow reversible compression processes require maximum work? (A) Adiabatic process (B) Isothermal process (C) Isobaric process (D) All require same work

Description : Which of the following non-flow reversible compression processes require maximum work? (A) Adiabatic process (B) Isothermal process (C) Isobaric process (D) All require same work

Last Answer : (A) Adiabatic process

Blowing Air with open pipe is an example of : (1) Isothermal process (2) Isochroric process (3) Isobaric process (4) Adiabatic process

Description : Blowing Air with open pipe is an example of : (1) Isothermal process (2) Isochroric process (3) Isobaric process (4) Adiabatic process

Last Answer : Isobaric process