Absolute Zero is defined as – (1) The temperature at which all molecular motion ceases (2) At which water boils at 298K (3) At which liquid Helium boils (4) At which the volume becomes zero

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(1) The temperature at which all molecular motion ceases Explanation: Absolute zero is the temperature at which all motion in matter stops and is thought to be unreachable. It is the point at which the fundamental particles of nature have minimal vibrational motion, retaining only quantum mechanical, zero-point energy-induced particle motion.

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Description : Absolute Zero is defined as (1) The temperature at which all molecular motion ceases (2) At which water boils at 298K (3) At which liquid Helium boils (4) At which the volume becomes zero

Last Answer : The temperature at which all molecular motion ceases

Description : The absolute zero is a temperature at which ______. (1) molecular motion in a gas would cease (2) water freezes (3) all gases become liquid (4) all gases become solid

Last Answer : (1) molecular motion in a gas would cease Explanation: Absolute zero is the lowest possible temperature where nothing could be colder and no heat energy remains in a substance.

Description : The absolute zero is a temperature at which ______. (1) molecular motion in a gas would cease (2) water freezes (3) all gases become liquid (4) all gases become solid

Last Answer : (1) molecular motion in a gas would cease Explanation: Absolute zero is the lowest possible temperature where nothing could be colder and no heat energy remains in a substance. It is the point at which all motion in matter stops.

Description : The absolute zero is a temperature at which - (1) Molecular motion in a gas would cease (2) Water freezes (3) All gases become liquid (4) All gases become solid

Last Answer : (1) Molecular motion in a gas would cease Explanation: Absolute zero is the lowest possible temperature where nothing could be colder and no heat energy remains in a substance. That temperature Molecular motion in a gas would cease.

Description : The absolute zero is a temperature at which _______ (1) molecular motion in a gas would cease (2) water freezes (3) all gases become liquid (4) all gases become solid

Last Answer : molecular motion in a gas would cease

Description : The absolute zero is a temperature at which ______. (1) molecular motion in a gas would cease (2) water freezes (3) all gases become liquid (4) all gases become solid

Last Answer : (1) molecular motion in a gas would cease Explanation: Absolute zero is the lowest possible temperature where nothing could be colder and no heat energy remains in a substance.

Description : Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at (A) High vacuum (B) Zero pressure (C) 0°K (D) Earth's centre

Last Answer : (B) Zero pressure

Description : Absolute zero pressure will occur  (a) at sea level  (b) at the center of the earth  (c) when molecular momentum of the system becomes zero  (d) under vacuum conditions  (e) at a temperature of – 273 °K

Last Answer : Answer : c

Description : A temperature scale whose zero point is absolute zero, the temperature of “0” entropy at which all molecular motion stops.  a. Celsius  b. Fahrenheit  c. Kelvin  d. Rankine

Last Answer : Kelvin

Description : What is is the Temperature at which all atomic kinetic motion ceases is?

Last Answer : The temperature is absolute zero, a minimum temperature ofmatter based on continually reduced molecular motion.(Although absolute zero cannot be attained, it is possible toget very very close, to about 170 billionths of a kelvin.)Absolute zero is approximately -273.15 °C

Description : Dew point can be best defined as the: a. Absolute temperature at which air, upon heating, will evaporate moisture b. . Percentage of moisture that air can hold at a given temperature ... to condense should the temperature drop further e. . Atmospheric pressure at which air will condense moisture

Last Answer : Answer: D

Description : Assertion: The enthalpy of formation of gaseous oxygen molecules at `298K` and under1 atm is zero. Reason: The entropy of formation of gaseous oxygen

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Description : "At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero". This follows from the (A) Third law of thermodynamics (B) Second law of thermodynamics (C) Nernst heat theorem (D) Maxwell's relations

Last Answer : (A) Third law of thermodynamics

Description : The kinetic energy of molecules of a gas becomes zero at absolute zero temperature.  A. Agree  B. Disagree

Last Answer : Answer: A

Description : What happens to a liquid, when the vapour pressure equals the atmospheric pressure? (1) The liquid cools (2) The liquid boils (3) No change (4) The liquid evaporates

Last Answer : (2) The liquid boils Explanation: Ordinary evaporation is a surface phenomenon -since the vapor pressure is low and since the pressure inside the liquid is equal to atmospheric pressure plus ... pressure is equal to atmospheric pressure, bubbles form, and the vaporization becomes a volume phenomena.

Description : What happens to a liquid, when the vapour pressure equals the atmospheric pressure? (1) The liquid cools (2) The liquid boils (3) No change (4) The liquid evaporates

Last Answer : The liquid boils

Description : When ball having a projectile motion is rising up, it A. decelerates B. accelerates C. rises up with constant acceleration D. acceleration becomes zero

Last Answer : decelerates

Description : What happens to the internal energy of water at reference temperature where enthalpy is zero?  a. Becomes negative  b. Becomes positive  c. Remains constant  d. Cannot be defined

Last Answer : Becomes negative

Description : Why is ethanol boiling at a higher boiling point than methyl ether boils at a lower boiling point despite the fact that they have the same molecular weight?

Last Answer : Need answer

Description : At absolute zero, volume of gas is equal to A. 0 m3 B. 1 m3 C. 2 m3 D. 3 m3

Last Answer : 0 m3

Description : Liquid hydrogen boils at 17 K. What is the temperature in degrees Celsius?  a. 290  b. 63  c. -120  d. -256

Last Answer : -256

Description : The rice is cooked more quickly in a pressure cooker because – (1) it is covered. (2) less quantity of water is used. (3) None of these (4) water boils at a higher temperature under pressure.

Last Answer : (4) water boils at a higher temperature under pressure. Explanation: The rice can be cooked faster in a pressure cooker since the boiling point of water increases with pressure. In general, the higher the ... of the water in a pressure cooker is higher than temperature of the water in an open pot.

Description : Water boils at a lower temperature on the hills because – (1) it is cold on the hills (2) there is less carbon dioxide on the hills (3) there is a decrease in air pressure on the hills (4) There is less oxygen

Last Answer : (3) there is a decrease in air pressure on the hills Explanation: Water boils at a lower temperature on top of a mountain because there is less air pressure on the molecules. Water boils when the ... at high elevations foods that are cooked by boiling take a little longer to cook at high elevation.

Description : The rice is cooked more quickly in a pressure cooker because (1) it is covered. (2) less quantity of water is used. (3) None of these (4) water boils at a higher temperature under pressure.

Last Answer : water boils at a higher temperature under pressure. 

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Last Answer : there is a decrease in air pressure on the hills

Description : An astronaut inside a spacecraft is in a state of weightlessness. This implies that A. The mass of the astronaut is reduced to zero B. Gravity inside the spacecraft ceases to act C. The astronaut is outside the D. The astronaut and the spacecraft are both in a free-falling state

Last Answer : ANSWER: D

Description : A drop of liquid assumes spherical shape because: (1) Intermolecular forces are strong in liquids (2) A sphere has the least surface area for a given volume (3) A sphere has the largest surface area for a given volume (4) Inter molecular forces are weak in liquids

Last Answer : (2) A sphere has the least surface area for a given volume Explanation: A drop of liquid assumes spherical shape because a sphere has the least surface area for a given volume.

Description : A drop of liquid assumes spherical shape because: (1) Intermolecular forces are strong in liquids (2) A sphere has the least surface area for a given volume (3) A sphere has the largest surface area for a given volume (4) Inter molecular forces are weak in liquids

Last Answer : A sphere has the least surface area for a given volume

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Last Answer : no pressure

Description : According to kinetic theory of gases, the absolute zero temperature is attained when  (a) volume of the gas is zero  (b) pressure of the gas is zero  (c) kinetic energy of the molecules is zero  (d) specific heat of gas is zero  (e) mass is zero.

Last Answer : Answer : c

Description : The energy of molecular motion in a gas appears in the form of: w) friction x) internal energy y) temperature z) potential energy

Last Answer : ANSWER: Y -- TEMPERATURE

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Description : Cavitation will begin when (A) The pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid (B) Pressure becomes more than critical pressure (C) Flow is increased (D) Pressure is increased

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Description : When a gas or a liquid is subjected to an increased pressure, the substance contracts, the bulk strain is defined as A. final volume ⁄ original volume B. final pressure ⁄ original pressure C. change in volume ⁄ original volume D. original volume ⁄ change in volume

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Description : Absolute Zero is defined as

Last Answer : The temperature at which all molecular motion ceases 642.

Description : Will the PH of water is same at 277K and 298K?

Last Answer : Ans: No ,As the temperature increases ,dissociation of water take place to greater extent H+ ion concentration PH decreases

Description : A Rotameter through which air at room temperature and atmospheric pressure is flowing gives a certain reading for a flow rate of 100 cc/sec. If helium (molecular weight 4) is used and Rotameter shows the same reading, the flow rate (cc/sec) is (A) 26 (B) 42 (C) 269 (D) 325

Last Answer : (C) 269

Description : What does Every object at a temperature above absolute zero?

Last Answer : – Radiates energy

Description : At what point is the temperature the same on the Celsius and Fahrenheit scales? w) Absolute zero x) Zero y) Negative 40 degrees z) Never

Last Answer : ANSWER: Y -- NEGATIVE 40 DEGREES

Description : Which of the following equations corresponds to the enthalpy of combustion at `298K`?

Last Answer : Which of the following equations corresponds to the enthalpy of combustion at `298K`? A. `C_(2)H_(6)(g)+7//2O_(2 ... (2)(g)rarr 4CO_(2)(g)+6H_(2)O(l)`

Description : Universal gas constant is defined as equal to product of the molecular weight of the gas and  (a) specific heat at constant pressure  (b) specific heat at constant volume  (c) ratio of two specific heats  (d) gas constant  (e) unity.

Last Answer : Answer : d

Description : 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 ... compound is defined as the heat of reaction leading to the formation of the compound from its reactants

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

Description : If two different gases have the same volume, temperature, and pressure and behave like ideal gases, they will also be identical in which one of the following ways? w) average molecular velocity x) total mass y) total molecular kinetic energy z) average momentum per molecule

Last Answer : ANSWER: Y -- TOTAL MOLECULAR KINETIC ENERGY

Description : Which of the following is NEVER used as a coolant in nuclear reactors: w) liquid nitrogen x) liquid sodium y) water z) helium gas

Last Answer : ANSWER: W -- LIQUID NITROGEN

Description : Which of the following statements describes the effects of ambient temperature on local action within lead-acid storage batteries? A. Increasing ambient temperature increases local action. B. Increasing ambient ... has no effect on local action. D. At 90°F all local action virtually ceases.

Last Answer : Answer: A

Description : Pour point of a petrofuel is (A) Multiple of 3°F (B) Multiple of 5°F (C) 5°C below the temperature at which oil ceases to flow (D) None of these

Last Answer : (C) 5°C below the temperature at which oil ceases to flow

Description : Why absolute status and absolute motion do not exist ?

Last Answer : If the position of an object does not change with respect to a stationary context structure, its position is absolute and if the position of an object changes with respect to that context structure, ... is not available. Thus it can be said that absolute position and absolute motion do not exist.

Description : Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is (A) 4 (B) 3 (C) 2 (D) 1

Last Answer : (A) 4