A. Surface phenomenon
B. Continuous
C. Exothermic
D. Cause cooling
Correct Answer: Exothermic ✔
Last Updated: February 11, 2021
Related MCQs
- The amount of heat absorbed when one mole of a liquid is changed into gas at its boiling point is__________?
- If a physical and chemical change takes place at a constant pressure then the heat change during the process is called__________?
- The number amino acid units for each turn of helix on average are__________?
- Which solids are called true solids __________?
- The viscosity of solids is__________?
- Crystalline solids can be identified easily from their __________?
- A malleable solid is one which can be__________?
- Crystallites are present in__________?
- Molar heat of vaporization of water is__________?
- Liquid gets the shape of the container when it is poured into it. Which one of the following reasons justifies it ?
- The number of formula units in 29.25g of common salt__________?
- Rising of a wetting liquid in a capillary tube is due to__________?
- The boiling point increases down the zero group element due to__________?
- When water freezes at 0°C its density decreases due to__________?
- The conversion of vapours back into their liquid state is called__________?
- Steam causes more sever burn than the boiling water because it possesses __________?
- The density of water may be__________?
- Which one is a conductor but is not malleable ?
- Which one of the following does not show hydrogen bonding?
- When the atoms of third layer are arranged in such a way that they directly lie above the atoms of first layer then this arrangement is called__________?
- Which has strongest bonding in the solid state ?
- All the enthalpy changes are__________?
- The pressure during the molar heat of fusion is kept__________?
- Isomorphic substances have __________?
- Bucky balls is an allotropic from of__________?
- The phenomenon in which a compound exists in two or more crystalline forms is called __________?
- Boiling points of hydrocarbons increase with the increase in number of carbon atoms. It is mainly due to__________?
- Amorphous substances posses__________?
- A solid may be made up of__________?
- If we provide very high amount of heat to a liquid its boiling point will__________?
- Which one of the following has highest volatility__________?
- During which process empty spaces between particles become minimum ?
- Table salt crystallizes with a__________?
- Vapour pressure is not affected by__________?
- The ttractive forces between the partial positive end of one molecule and partial negative end of other molecule are called__________?
- Formation of vapours from the surface of a liquid is called__________?
- Water has maximum density at __________?
- The quantity of heat required to convert one mole of liquid into its vapours at its boiling point is called molar heat of__________?
- Forces of attraction which may be present between all kinds of atoms and molecules are __________?
- Hydrogen bonding is involved in__________?
- Liquid crystal is discovered by __________?
- Vapour pressure of water at 100°C is__________?
- In order to mention the boiling point of water at 110°C the external pressure should be ?
- When substance moves from a solid to a liquid state all of the following changes occur except__________?
- Which of the following has strongest intermolecular forces of attraction ?