Describe processes are endothermic or exothermic, Chemistry

Assignment Help:

From personal experience, describe whether these processes are endothermic or exothermic. Give a reason for each.

      a. A charcoal briquette burns.

      b. Ice melts.

      c. Water evaporates from your skin.

      d. Wood burns.

Answer:

      a. Exothermic. A charcoal briquette releases heat as it burns.

      b. Endothermic. Water absorbs the heat essential for evaporation from your skin, and your skin feels cooler.

      c. Endothermic. Ice absorbs the essential heat from the environment to melt.

      d. Exothermic. Wood releases heat as it burns.


Related Discussions:- Describe processes are endothermic or exothermic

Which orbital is dumb-bell shaped, Which orbital is dumb-bell shaped : (...

Which orbital is dumb-bell shaped : (1) s -orbital         (2) p  -orbital    (3) d  -orbital          (4)f -orbital Ans: p  -orbital

Explain about monohalides, Q. Explain about Monohalides? Monohalides of...

Q. Explain about Monohalides? Monohalides of the type M 2 X 2 , (where X = F, C1 and Br) are formed only by 0. S and Se. Oxygen monofluoride decomposes above 25 K. These monoha

Explain basic physical properties of gas, Q. Explain Basic physical propert...

Q. Explain Basic physical properties of Gas? Ans. Gases are the least dense phase of matter. Gases can be easily expanded or compressed. They exert pressure equally in

Noise management strategy on a particular site, Question: a) If you wer...

Question: a) If you were a newly appointed environmental engineer in a wastewater treatment plant and one of your tasks was to characterise the wastewater. According to you,

Explain about coordination isomerism, Q. Explain about Coordination Isomeri...

Q. Explain about Coordination Isomerism? Coordination Isomerism: If the complex is a salt having both cation and anion as complex ions then the ligands can exchange position

Illustrate law of conservation of mass, Q. Illustrate Law of Conservation o...

Q. Illustrate Law of Conservation of Mass? Ans: Conservation of Mass and Atoms: The Law of Conservation of Mass states that mass is neither created nor destroyed. Th

Introduction to Inorganic and Organic Chemistry, Although CO is well known,...

Although CO is well known, SiO does not exist under ordinary conditions. Why is that?

Chain growth or addition polymerisation, Chain growth or addition polymeris...

Chain growth or addition polymerisation It includes a series of reaction each of which consumes a reactive particle and generates another similar one.  The reactive molecule m

If magnetic quantum number of a given atom represented, If magnetic quantum...

If magnetic quantum number of a given atom represented by -3, then what will be its principal quantum number: (1) 2                (2) 3        (3) 4                (4

List the factors influencing product development, Q. List the factors influ...

Q. List the factors influencing product development? The factors influencing product development are growing urbanization, changes in life style, increasing number of small fam

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