The increasing vapor pressure caused by heating a liquid is due to------? A. increase inter-molecular interactions B. increasing potential energy of molecules C. increasing kinetic energy of molecules (Answer) D. decreasing surface tension

The increasing vapor pressure caused by heating a liquid is due to------?

A. increase inter-molecular interactions

B. increasing potential energy of molecules

C. increasing kinetic energy of molecules (Answer)

D. decreasing surface tension
by

1 Answer

Answer :

C. increasing kinetic energy of molecules (Answer)
by

Related questions

When a liquid is at its boiling point, no temperature change takes place due to heating. The energy supplied due to heating (a) Is used up to increase the potential energy of the liquid molecules (b) Is used up to increase the kinetic energy of the molecules (c) Is used up to increase the kinetic energy and potential energy of the molecules (d) Is wasted

Description : When a liquid is at its boiling point, no temperature change takes place due to heating. The energy supplied due to heating (a) Is used up to increase the potential energy of the liquid molecules (b ... c) Is used up to increase the kinetic energy and potential energy of the molecules (d) Is wasted

Last Answer : Ans:(a)

Temperature of a gas is produced due to  (a) its heating value  (b) kinetic energy of molecules  (c) repulsion of molecules  (d) attraction of molecules  (e) surface tension of molecules.

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Last Answer : Answer : b

Pick out the wrong statement about cavitation. (A) Sudden reduction of pressure in a fluid flow system caused by flow separation, vortex formation or abrupt closing of valve leads to cavitation (B) Cavitation may be caused due to boiling of liquid by decreasing the pressure resulting in formation & collapse of vapor cavities (C) Cavitation begins at higher static pressure and lower velocity in larger diameter pipelines resulting in audible noise(D) Large scale cavitation cannot damage pipeline, restrict fluid flow anddamage steam turbine blades

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The energy of molecular motion appears as  (a) heat  (b) potential energy  (c) surface tension  (d) friction  (e) increase in pressure.

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Last Answer : Answer : a

Which one of the following statements is correct ? a) For water at 100o Celsius at sea level, the vapour pressure is equal to atmospheric pressure b) Surface energy (or tension) is caused by the force of adhesion between liquid molecules c) Viscosity of a fluid is the property exhibited by it both in static and in dynamic conditions d) Air is 50,000 times more compressible than water

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

During inter conversion of energy from one form to other forms, total energy at any time remains– (1) constant (2) zero (3) increasing (4) decreasing

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Last Answer : ANSWER: Y -- THE MELTING POINT DECREASES WITH INCREASING PRESSURE 

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Surface tension in a liquid is due to : (1) Adhesive force between molecules (2) Cohesive force between molecules (3) Gravitational force between molecules (4) Electrical force between molecules

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Capillary action is due to the (A) Surface tension (B) Cohesion of the liquid (C) Adhesion of the liquid molecules and the molecules on the surface of a solid (D) All of the above

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Last Answer :  Cohesive force between molecules

Surface tension of liquids is the result of which the following: w) interaction of a liquid with its container x) unbalanced forces on the liquid's surface molecules y) adhesive forces of the liquid z) interaction of the liquid's surface molecules and the applied pressure

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Last Answer : raising the temp and lowering the temp

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Last Answer : (B) Decrease in activation energy

Arrange the following Polymers in increasing order of inter molecular forces Nylon 6, Neoprene and PVC

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Arrange in increasing order of inter molecular forces. Nylon 66, Buna-S and polyethene.

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Last Answer : Ans: Nylon 66 > polyethene> Buna-S 

Arrange the following Polymers in increasing order of inter molecular forces. (a) Nylon 66, Buna-S and Polythene (b) Nylon 6, Neoprene and PVC

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Energy stored in a body as thermal or internal energy consists of one of the following. Does it consist of: w) heat in the form of radiant energy x) molecular kinetic energy only y) molecular potential energy only z) both kinetic and potential energy

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According to the kinetic theory, the Kelvin temperature of an ideal gas is proportional to which one of the following. Is the temperature proportional to the gas's average molecular: w) velocity x) momentum y) kinetic energy z) potential energy

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Explain Laplace’s molecular theory of liquid & hence define surface tension.

Description : Explain Laplace’s molecular theory of liquid & hence define surface tension. 

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The total energy of a liquid particle in motion is equal to (A) Pressure energy + kinetic energy + potential energy (B) Pressure energy - (kinetic energy + potential energy) (C) Potential energy - (pressure energy + kinetic energy (D) Kinetic energy - (pressure energy + potential energy)

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Which of the following statement is wrong? (A) A flow whose streamline is represented by a curve is called two dimensional flow. (B) The total energy of a liquid particle is the sum of potential energy, kinetic energy and pressure energy. (C) The length of divergent portion in a Venturimeter is equal to the convergent portion. (D) A pitot tube is used to measure the velocity of flow at the required point in a pipe.

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Last Answer : ANSWER : A

gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its (A) Aqueous tension (B) Saturated humidity (C) Vapor pressure

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Description : What is the sum of the kinetic energy and potential energy of the molecules of matter called energy ?

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Last Answer : Heat transfer and work

With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will (A) Decrease (B) Increase (C) Remain unchanged (D) Depend upon the characteristics of liquid

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The rise or depression of liquid in a tube due to surface tension will increase in size of tube will (A) Increase (B) Remain unaffected (C) May increase or decrease depending on the characteristics of liquid (D) Decrease

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Last Answer : What is the answer ?

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