Explain the heating curve for water, Chemistry

Assignment Help:

Q. Explain the Heating curve for water?

Ans.

When a substance is heated, it undergoes several phase changes. A heating curve is a diagram which illustrates the phase changes that occur when a substance is heated. Let us look at the phase changes that occur when water is heated by examining its heating curve:

1822_heating curve for water.jpg

Note that the melting and boiling processes require the addition of a specific amount of energy to break the forces holding the water molecules together. When a liquid solidifies or condenses, the opposite occurs: energy is released.

The amount of heat required for melting is known as the heat of fusion. For example, the heat of fusion of water is 80 cal/g.

Similarly, the amount of heat required for boiling is known as the heat of vaporization. The heat of vaporization for water is 540 cal/g.


Related Discussions:- Explain the heating curve for water

Formula of a metallic oxide is mo, Formula of a metallic oxide is MO.The  f...

Formula of a metallic oxide is MO.The  formula of its phosphate will be: (1) M 2 (PO 4 ) 2                      (2) M (PO 4 )         (3) M 2 (PO 4 )       (4) M 3 (P

Calculate the thermodynamic properties, Measure the thermodynamic propertie...

Measure the thermodynamic properties (reaction enthalpy, entropy, and Gibbs energy) for this reaction under standard conditions. Is the reaction exothermic or endothermic? Is i

What is meant by integrated coastal zone management, Question : (i) Wh...

Question : (i) What is meant by Integrated Coastal Zone Management? (ii) What is its main objective? (iii) List the principal measures involved in the implementatio

Univercity student, whats is surfactant and its applications in cloud point...

whats is surfactant and its applications in cloud point extraction ?

What is use of ion pair reagents, WHAT IS USE OF ION PAIR REAGENTS? The c...

WHAT IS USE OF ION PAIR REAGENTS? The chemical substances that pair each other, to produces complexes. These can use for stabilization of one of the molecule that is more active

States of matter, A sample of gas occupies 10l under a pressure of 1atm. wh...

A sample of gas occupies 10l under a pressure of 1atm. what will be its volume if the pressure is increased to 2atm ? assuming that temperature of the gas sample does not change

Avogadros gas laws, what mass of oxygen gas exerts a pressure of 475 mm Hg ...

what mass of oxygen gas exerts a pressure of 475 mm Hg in a volume of 1.25L at a temperature of -22C

#tstereochemisty, what is the difference between mirror image and optical i...

what is the difference between mirror image and optical isomerism?

Which of the following configuration is correct for iron, Which of the foll...

Which of the following configuration is correct for iron : (1) 1s 2 , 2s 2, 2p 6 , 3s 2 , 3p 6 ,, 3d 5    (2) 1s 2 , 2s 2 , 2p 6 , 3s 2 ,3p 6 , 4s 2 , 3d 5            (3)

Explain in brief about the wire drawing, Explain in brief about the Wire dr...

Explain in brief about the Wire drawing Drawing: Refers to shaping in a punch press of flat blanks of sheet metal into different shapes. This process is fundamentally forcing

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd