What intermolecular force would affect melting point most?

What intermolecular force would affect melting point most?
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(a) What happens when a Ferromagnetic or Ferrimagnetic solid is heated ? (b) The ions of MgO and NaF all have the same number of electrons and intermolecular distance are about the same (235 & 215 pm). Why are the melting points are so different (2642 °C & 992 °C ?

Description : (a) What happens when a Ferromagnetic or Ferrimagnetic solid is heated ?  (b) The ions of MgO and NaF all have the same number of electrons and intermolecular distance are about the same (235 & 215 pm). Why are the melting points are so different (2642 °C & 992 °C ?

Last Answer : (a) It changes into paramagnetic at hight temperature due to randomization of spins.  (b) The ions in MgO carry two unit charges. In NaCl only one unit charge. Hence electrostatic forces of attraction in MgO are stronger.

Which of the following best explains why the melting points of saturated fats increase with increasing molecular weight? (a) decreased hydrogen bonding (b) increased hydrogen bonding (c) decreased intermolecular van der Waal’s interactions (d) increased intermolecular van der Waal’s interactions

Description : Which of the following best explains why the melting points of saturated fats increase with increasing molecular weight? (a) decreased hydrogen bonding (b) increased hydrogen bonding (c) decreased intermolecular van der Waal’s interactions (d) increased intermolecular van der Waal’s interactions

Last Answer : increased intermolecular van der Waal’s interactions

Define intermolecular forces. Also write down effect of intermolecular forces on melting points & boiling points of substances?

Description : Define intermolecular forces. Also write down effect of intermolecular forces on melting points & boiling points of substances?

Last Answer : The forces of attraction present between the molecules of a compound are called Intermolecular forces''. Effect of intermolecular forces on the m.p and b.p of substances If intermolecular forces of attractions in ... . And if these forces are weak then the m.p and b.p will be relatively lower.

What is the force of intermolecular attraction ?

Description : What is the force of intermolecular attraction ?

Last Answer : The force by which molecules of matter join together to form different physical structures is called intermolecular force of attraction. The form of the intermolecular attraction ball can be different -1. Dipole-Dipole attraction ball 2. Vander Walls attraction ball 3. Hydrogen bonding , etc.

What is the intermolecular force of SiBr4?

Description : What is the intermolecular force of SiBr4?

Last Answer : Feel Free to Answer

What is the intermolecular force of Nitrogen?

Description : What is the intermolecular force of Nitrogen?

Last Answer : London or vanderwal force

What is the intermolecular force of Nitrogen?

Description : What is the intermolecular force of Nitrogen?

Last Answer : London or vanderwal force

What is the intermolecular force of octasulfur?

Description : What is the intermolecular force of octasulfur?

Last Answer : The bonds in octasulfur are covalent.

Name the solid which has weakest intermolecular force ?

Description : Name the solid which has weakest intermolecular force ?

Last Answer : Ice

What is the strongest intermolecular force present in liquid ethanol? (a) induced dipole-induced dipole (b) dipole-dipole, specifically hydrogen bonding (c) dipole-dipole, but not hydrogen bonding (d) ion-dipole

Description : What is the strongest intermolecular force present in liquid ethanol? (a) induced dipole-induced dipole (b) dipole-dipole, specifically hydrogen bonding (c) dipole-dipole, but not hydrogen bonding (d) ion-dipole

Last Answer : dipole-dipole, specifically hydrogen bonding

The presence of impurities in iron (A) Increases its melting point (B) Does not affect its melting point (C) Decreases its melting point (D) Makes it malleable

Description : The presence of impurities in iron (A) Increases its melting point (B) Does not affect its melting point (C) Decreases its melting point (D) Makes it malleable

Last Answer : (C) Decreases its melting point

Sudden temperature fluctuation does not affect pyrex glass, because of its (A) Low co-efficient of expansion (B) High co-efficient of expansion (C) High melting point (D) Both (B) and (C)

Description : Sudden temperature fluctuation does not affect pyrex glass, because of its (A) Low co-efficient of expansion (B) High co-efficient of expansion (C) High melting point (D) Both (B) and (C)

Last Answer : (A) Low co-efficient of expansion

Use the information and data given below to answer the questions • Stronger intermolecular forces result in higher boiling point • Strength of London forces increases with the number of electrons in the molecule • Boiling point of HF ,HCl, HBr and HI are 293K,189K,206K and 238K respectively (a) Which type of intermolecular forces are present in the molecules HCl, HBr and HI? (b) Looking at the trend of boiling points of HCl, HBr and HI, explain, out of dipole interaction and London interaction, which one predominant here? (c) Why is the boiling point of HF highest while that of HCl lowest?

Description : Use the information and data given below to answer the questions Stronger intermolecular forces result in higher boiling point Strength of London forces increases with the number of electrons in the molecule ... here? (c) Why is the boiling point of HF highest while that of HCl lowest?

Last Answer : Ans :( a) In the molecules HCl, HBr and HI, dipole-dipole interaction and London forces are present. (b) Dipole moment of HCl > HBr > HI but boiling point of HCl < HBr

Based on the intermolecular forces involved, which of the following molecules will have the lowest boiling point? w) ethane x) methyl alcohol y) methyl amine z) methyl fluoride

Description : Based on the intermolecular forces involved, which of the following molecules will have the lowest boiling point? w) ethane x) methyl alcohol y) methyl amine z) methyl fluoride

Last Answer : ANSWER: W -- ethane

Agar is used for solidifying culture media because A-it does not affect by the growth of bacteria B-it does not add to the nutritive properties of the medium C-the melting and solidifying points of agar solution are not the same D-all of the above

Description : Agar is used for solidifying culture media because A-it does not affect by the growth of bacteria B-it does not add to the nutritive properties of the medium C-the melting and solidifying points of agar solution are not the same D-all of the above

Last Answer : all of the above

Using H2O, how can I explain the difference between intramolecular and intermolecular forces?

Description : Using H2O, how can I explain the difference between intramolecular and intermolecular forces?

Last Answer : H2O is a polar covalent molecule. Polar covalent molecules occur when heterogeneous molecules occur between atoms of different electro-negativity (E.N.), which is a measure of how strongly an atom attracts a ... molecule and the δ- dipole (in this case O) of an adjacent molecule. Hope that helps.

Why is the intermolecular attraction ball predominant if the contraction coefficient is Z <1 ?

Description : Why is the intermolecular attraction ball predominant if the contraction coefficient is Z

Last Answer : Z < 1 means that real gas is more compressible than standard gas. If a gas is more compressible , the intermolecular attraction between the gas particles must be greater. This is why if z < 1, the intermolecular force of attraction is greater , so that the gas becomes more compressible.

What is intermolecular energy ?

Description : What is intermolecular energy ?

Last Answer : The force of attraction between the molecules of matter is called intermolecular energy.

What is intermolecular energy ?

Description : What is intermolecular energy ?

Last Answer : The force of attraction between two molecules is called intermolecular energy.

What is intermolecular energy ?

Description : What is intermolecular energy ?

Last Answer : Intramolecular energy: There is a force of attraction between the molecules of matter. Due to this the molecules are closely organized. There is also a repulsive tendency for molecules to ... each other. This combined force of attraction and repulsion of molecules is called intermolecular energy.

What is the meaning of the word intermolecular ?

Description : What is the meaning of the word intermolecular ?

Last Answer : Intermolecular term means - the attraction of the molecules of matter to one another.

Intermolecular Power What ?

Last Answer : Molecules To each other Attraction By

Name the types of intermolecular forces present in Ar, Cl2, CCl4 and HNO3.

Description : Name the types of intermolecular forces present in Ar, Cl2, CCl4 and HNO3.

Last Answer : Name the types of intermolecular forces present in Ar, Cl2, CCl4 and HNO3.

Identify type of the intermolecular forces in the following compounds. a. CH3 – OH  b. CH2 = CH2 c. CHCl3

Description : Identify type of the intermolecular forces in the following compounds. a. CH3 – OH  b. CH2 = CH2 c. CHCl3

Last Answer : Identify type of the intermolecular forces in the following compounds. a. CH3 – OH b. CH2 = CH2 c. CHCl3 d. CH2Cl2

Assertion: Intermolecular dehydration is not useful for the perparation of unsymmetrical ethers from primary alcohols Reason: The reaction leads to a

Description : Assertion: Intermolecular dehydration is not useful for the perparation of unsymmetrical ethers from primary alcohols Reason: The reaction leads to a

Last Answer : Assertion: Intermolecular dehydration is not useful for the perparation of unsymmetrical ethers from primary ... . Assertion is false, Reason is true

Which of the following exhibits the weakest intermolecular forces?

Description : Which of the following exhibits the weakest intermolecular forces?

Last Answer : Which of the following exhibits the weakest intermolecular forces? A. `H_(2)O` B. `NH_(3)` C. He D. HCl

Intermolecular forces in liquid are :

Description : Intermolecular forces in liquid are :

Last Answer : Intermolecular forces in liquid are : a. greater than gases b. less than solids c. both a and b d. greater than solids

What intermolecular forces are in O2?

Description : What intermolecular forces are in O2?

Last Answer : The oxygen molecule has a covalent bond; the intermolecular forces are London dispersion forces.

What type of intermolecular forces are in LiCl?

Description : What type of intermolecular forces are in LiCl?

Last Answer : Lithium chloride form large lattices.

What is the intermolecular ammonia and ammonia?

Description : What is the intermolecular ammonia and ammonia?

Last Answer : The intermolecular forces are hydrogen bonding.

Why does water form intermolecular hydrogen bonds with other molecules?

Description : Why does water form intermolecular hydrogen bonds with other molecules?

Last Answer : Feel Free to Answer

What are the intermolecular forces in OCl2?

Description : What are the intermolecular forces in OCl2?

Last Answer : Feel Free to Answer

What is the intermolecular forces in HBr?

Description : What is the intermolecular forces in HBr?

Last Answer : These are dipole-dipole forces.

What intermolecular forces are in phosgene Cl2CO?

Description : What intermolecular forces are in phosgene Cl2CO?

Last Answer : Feel Free to Answer

What are the intermolecular forces for CH3CH2OH?

Description : What are the intermolecular forces for CH3CH2OH?

Last Answer : Feel Free to Answer

What intermolecular forces isp resent in Gatorade which is essential for the body?

Description : What intermolecular forces isp resent in Gatorade which is essential for the body?

Last Answer : Need answer

What intermolecular forces exist in CH3OH?

Description : What intermolecular forces exist in CH3OH?

Last Answer : Need answer

What is the intermolecular forces in HBr?

Description : What is the intermolecular forces in HBr?

Last Answer : These are dipole-dipole forces.

What are the Intermolecular forces of 1-(2-propoxy2-methyl)-butane?

Description : What are the Intermolecular forces of 1-(2-propoxy2-methyl)-butane?

Last Answer : The intermolecular forces would be dispersion forces.

What intermolecular forces are in cl2?

Description : What intermolecular forces are in cl2?

Last Answer : Dispersion

What are the types of intermolecular forces in h2o?

Description : What are the types of intermolecular forces in h2o?

Last Answer : It has dispersion forces, dipole dipole forces ,and hydrogen bonding. Source: I'm a chemistry professor

Which of these substances exhibits the weakest intermolecular forces? (a) NH3 (b) H2O (c) He (d) HCI

Description : Which of these substances exhibits the weakest intermolecular forces? (a) NH3 (b) H2O (c) He (d) HCI

Last Answer : Ans:(c)

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

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.

Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their (A) Molecular sizes (B) Magnitude of intermolecular forces (C) Resistance to heat (D) Polymerisation mechanism

Description : Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their (A) Molecular sizes (B) Magnitude of intermolecular forces (C) Resistance to heat (D) Polymerisation mechanism

Last Answer : (B) Magnitude of intermolecular forces

Properties of a polymer is affected by the (A) Chain length (B) Intermolecular forces (C) Both (A) and (B) (D) None of these

Description : Properties of a polymer is affected by the (A) Chain length (B) Intermolecular forces (C) Both (A) and (B) (D) None of these

Last Answer : (C) Both (A) and (B)

Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its (A) Tensile strength (B) Chemical resistance (C) Flexibility (D) All (A), (B) & (C)

Description : Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its (A) Tensile strength (B) Chemical resistance (C) Flexibility (D) All (A), (B) & (C)

Last Answer : (C) Flexibility

Which of the following has the weakest intermolecular forces? (A) Polyisoprene (B) Nylon-66 (C) Polystyrene (D) Bakelite

Description : Which of the following has the weakest intermolecular forces? (A) Polyisoprene (B) Nylon-66 (C) Polystyrene (D) Bakelite

Last Answer : (A) Polyisoprene

Explain the effect of increasing the temperature of a liquid, on intermolecular forces operating between its particles. What will happen to the viscosity of a liquid if its temperature is increased? Arrange the following in increasing order of viscosity-water, hexane, glycerine.

Description : Explain the effect of increasing the temperature of a liquid, on intermolecular forces operating between its particles. What will happen to the viscosity of a liquid if its temperature is increased? Arrange the following in increasing order of viscosity-water, hexane, glycerine.

Last Answer : Ans. On increasing the temperature , the kinetic energy of liquid molecules increases so that it can overcome the attractive forces between the molecules and hence liquid can flow more easily i.e. viscosity decreases. Order of increasing viscosity : hexane < water < glycerine.

Predict what will happen if intermolecular forces between the molecules are very weak

Description : Predict what will happen if intermolecular forces between the molecules are very weak

Last Answer : Ans. When intermolecular forces are very weak , molecules do not cling together t o make liquid and solid.