Inversion temperature of helium is very low. So when helium is allowed to expand into vacuum it gets

Inversion temperature of helium is very low. So when helium is allowed to expand into vacuum it gets
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Inversion temperature of helium is very low. So when helium is allowed to expand into vacuum it ... Heated C. Neither cooled, nor heated D. Liquified
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If a gas vapour is allowed to expand through a very minute aperture, then such a process is known as  (a) free expansion  (b) hyperbolic expansion  (c) adiabatic expansion  (d) parabolic expansion  (e) throttling.

Description : If a gas vapour is allowed to expand through a very minute aperture, then such a process is known as  (a) free expansion  (b) hyperbolic expansion  (c) adiabatic expansion  (d) parabolic expansion  (e) throttling.

Last Answer : Answer : e

Two moles of an ideal gas expand spontaneouly into vacuum. The work done is :-

Description : Two moles of an ideal gas expand spontaneouly into vacuum. The work done is :-

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Which of the following does NOT form as a result o a low level temperature inversion? w) smog x) sleet y) tornado z) fog

Description : Which of the following does NOT form as a result o a low level temperature inversion? w) smog x) sleet y) tornado z) fog

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A gas is allowed to expand reversibly under adiabatic conditions. What is zero for such a process ?

Description : A gas is allowed to expand reversibly under adiabatic conditions. What is zero for such a process ?

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Routine maintenance of dry-type transformers should include ____________. A. cleaning the windings, if accessible, with a vacuum cleaner or very low pressure air B. measuring and recording the winding temperature with an accurate mercury thermometer C. periodic cleaning of the winding insulation with an approved solvent D. making sure that the units are close to bulkheads or corners to protect them from damage

Description : Routine maintenance of dry-type transformers should include ____________. A. cleaning the windings, if accessible, with a vacuum cleaner or very low pressure air B. measuring and recording the winding ... . making sure that the units are close to bulkheads or corners to protect them from damage

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What are some common methods for helium leak testing a vacuum system?

Description : What are some common methods for helium leak testing a vacuum system?

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Why does H2O expand when it gets cold?

Description : Why does H2O expand when it gets cold?

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A balloon is inflated with helium gas at room temperature of 25 °C and at 1 bar pressure when its initial volume is 2.27L and allowed to rise in air.

Description : A balloon is inflated with helium gas at room temperature of 25 °C and at 1 bar pressure when its initial volume is 2.27L and allowed to rise in air.

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Where is wind shear the greatest? a. Near a strong low level inversion and in the region of a thunderstorm b. Near a valley with wind speeds greater than 35kts c. On the windward side of a mountain d. When the wind is greater than 35kts

Description : Where is wind shear the greatest? a. Near a strong low level inversion and in the region of a thunderstorm b. Near a valley with wind speeds greater than 35kts c. On the windward side of a mountain d. When the wind is greater than 35kts

Last Answer : a. Near a strong low level inversion and in the region of a thunderstorm

Where is wind shear the greatest? a. Near a strong low level inversion and in the region of a thunderstorm b. Near a valley with wind speeds greater than 35kts c. On the windward side of a mountain d. When the wind is greater than 35kts

Description : Where is wind shear the greatest? a. Near a strong low level inversion and in the region of a thunderstorm b. Near a valley with wind speeds greater than 35kts c. On the windward side of a mountain d. When the wind is greater than 35kts

Last Answer : a. Near a strong low level inversion and in the region of a thunderstorm

How to reduce effect of temperature inversion?

Description : How to reduce effect of temperature inversion?

Last Answer : Welcome to fluther. This sounds like a homework question and we don’t answer them here but we’ll point you in a direction to look. Are you talking gas, fluid, or solid?

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Temperature inversion is

Description : Temperature inversion is

Last Answer : Positive Lapse Rate

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Description : The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called __________ temperature. (A) Boyle (B) Inversion (C) Critical (D) Reduced

Last Answer : (A) Boyle

The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the __________ temperature. (A) Critical (B) Boyle (C) Inversion (D) Reduced

Description : The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the __________ temperature. (A) Critical (B) Boyle (C) Inversion (D) Reduced

Last Answer : (B) Boyle

All gases above its inversion temperature, in a throttling process will show (A) A heating effect (B) No change in temperature (C) A cooling effect (D) Either (A) or (C)

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Last Answer : (A) A heating effect

Gases are cooled in Joule-Thomson expansion, when it is __________ inversion temperature. (A) Below (B) At (C) Above (D) Either 'b' or 'c'

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Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is (A) 0 (B) ∞ (C) +ve (D) -ve

Description : Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is (A) 0 (B) ∞ (C) +ve (D) -ve

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Description : Which one is true for a throttling process? (A) A gas may have more than one inversion temperatures (B) The inversion temperature is different for different gases (C) The inversion ... gases (D) The inversion temperature is the temperature at which Joule-Thomson co-efficient is infinity

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Last Answer : c. An increase of temperature with height

How does temperature inversion affect radio transmission?

Description : How does temperature inversion affect radio transmission?

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How is the term "temperature inversion" used when referring to radio waves?

Description : How is the term "temperature inversion" used when referring to radio waves?

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An inversion is: a. A decrease of pressure with height b. A decrease of temperature with height c. An increase of temperature with height d. An increase of pressure with height

Description : An inversion is: a. A decrease of pressure with height b. A decrease of temperature with height c. An increase of temperature with height d. An increase of pressure with height

Last Answer : c. An increase of temperature with height

Atmospheric temperature increasing at the higher altitudes is called (1) Radiation (2) Inversion (3) Conduction (4) Convection

Description : Atmospheric temperature increasing at the higher altitudes is called (1) Radiation (2) Inversion (3) Conduction (4) Convection

Last Answer : Inversion

How much jewelry and money get's thrown away in disposable vacuum bags and sent to land fills?

Description : How much jewelry and money get's thrown away in disposable vacuum bags and sent to land fills?

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Description : Vacuum is generally maintained in the vapour space of an evaporator mainly to (A) Get economical temperature difference by using moderate pressure steam (B) Facilitate forward ... (C) Concentrate heat sensitive materials (D) Achieve very high concentration of the final product

Last Answer : (A) Get economical temperature difference by using moderate pressure steam

When a Hentai Manga author gets one of his SFW works adapted to television, is he allowed to make pornographic parodies of the same?

Description : When a Hentai Manga author gets one of his SFW works adapted to television, is he allowed to make pornographic parodies of the same?

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worker is allowed 60 hours to complete the job on a guaranteed wage of Rs. 10 per hour. Under the Rowan Plan, he gets an hourly wage of Rs. 12 per hour. For the same saving in time, how much he will get under the Halsey Plan? (a) Rs. 720 (b) Rs. 540 (c) Rs. 600 (d) Rs. 900

Description : worker is allowed 60 hours to complete the job on a guaranteed wage of Rs. 10 per hour. Under  the Rowan Plan, he gets an hourly wage of Rs. 12 per hour. For the same saving in time, how much he  will get under the Halsey Plan? (a) Rs. 720 (b) Rs. 540 (c) Rs. 600  (d) Rs. 900

Last Answer : (b) Rs. 540

Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of(A) Thermal cracking(B) Gum formation(C) Coking(D) Discoloration

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Description : If helium is introduced in a reactor containing O2 , SO2 and SO3 at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO3 ( ... 's principle). (A) Decreases (B) Increases (C) Remains unaltered (D) Changes unpredictably

Last Answer : (A) Decreases

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Description : Pipelines in cold countries often burst in winter, because – (1) Water freezes and expands in its volume (2) Temperature of ice is less than that of water (3) Pipelines contract in their volume (4) Pipelines expand due to freezing

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Last Answer : change

A stress which develops within an object when it attempts to expand or contract in response to a temperature changes, but cannot, due to being held rigidly in place.  a. elongation  b. thermal stress  c. expansion contraction  d. thermal expansion

Description : A stress which develops within an object when it attempts to expand or contract in response to a temperature changes, but cannot, due to being held rigidly in place.  a. elongation  b. thermal stress  c. expansion contraction  d. thermal expansion

Last Answer : thermal stress

Pipelines in cold countries often burst in winter, because (1) water freezes and expands in its volume (2) temperature of ice is less than that of water (3) pipelines contract in their volume (4) pipelines expand due to freezing

Description : Pipelines in cold countries often burst in winter, because (1) water freezes and expands in its volume (2) temperature of ice is less than that of water (3) pipelines contract in their volume (4) pipelines expand due to freezing

Last Answer : water freezes and expands in its volume

The gas which turns into liquid at the lowest temperature among the following is – (1) hydrogen (2) oxygen (3) helium (4) nitrogen

Description : The gas which turns into liquid at the lowest temperature among the following is – (1) hydrogen (2) oxygen (3) helium (4) nitrogen

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The gas which turns into liquid at the lowest temperature among the following is (1) hydrogen (2) oxygen (3) helium (4) nitrogen

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Last Answer : hydrogen

When charging a 100 amp-hour lead-acid battery, ___________. A. the temperature of the electrolyte should not be allowed to exceed 90°F B. the charging rate should be no greater than 125% of the battery amp-hour rating C. the source of power for charging should be 2.5 volts per cell D. gassing within the battery decreases when nearing full charge and it will be necessary to reduce the charging current to a low finishing rate

Description : When charging a 100 amp-hour lead-acid battery, ___________. A. the temperature of the electrolyte should not be allowed to exceed 90°F B. the charging rate should be no greater than 125% of the ... nearing full charge and it will be necessary to reduce the charging current to a low finishing rate

Last Answer : Answer: C

Can you get stuck upside down on an inversion table?

Description : Can you get stuck upside down on an inversion table?

Last Answer : Yes

What is Inversion ?

Description : What is Inversion ?

Last Answer : The position of the verb in front of the subject is called inversion , which is the opposite of the general order of a sentence.

After thermal inversion, pollutants pile up in

Description : After thermal inversion, pollutants pile up in

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In thermal inversion.

Description : In thermal inversion.

Last Answer : In thermal inversion. A. Warm ground air gets overlapped by cool air B. Cool ground air gets ... winter D. Ground temperature becomes low in summer.