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

Find the number of degrees of freedom, Q. Consider a single-phase system th...

Q. Consider a single-phase system that is a gaseous mixture of N 2 , H 2 , and NH 3 . For each of the following cases, find the number of degrees of freedom and give an example of

Matter, name the physical state of matter which can be easily compressed.

name the physical state of matter which can be easily compressed.

Physical properties of benzene, Physical Properties of benzene (a) Firs...

Physical Properties of benzene (a) First property of Benzene is that it is a colourless, mobile and volatile liquid. Its boiling point is 80°C and freezing point is 5.5°C. It c

Calculate ionic products of water(kw) at a given temperature, It looks at h...

It looks at how the ionic product varies with temperature, and how that ... page, we shall calculate the concentration of hydroxonium ions present in pure water. Kw is called

Atoms in the water molecule, Atoms in the water molecule are linked by: ...

Atoms in the water molecule are linked by: (1) Electrovalent bond                  (2)Covalent bond   (3) Coordinate covalent bond    (4) Odd electron bond Ans: Cov

Explain the structure of alkenes, Q. Explain the structure of Alkenes? ...

Q. Explain the structure of Alkenes? Ans. Alkenes have the general formula C n H 2n . Therefore, for every n carbon atoms, there are 2n hydrogen atoms. Alkenes have C =

Matter, why the water is compound

why the water is compound

Metallurgy, what are the various steps involved in metal extraction?

what are the various steps involved in metal extraction?

Experiment of an air oven, An air oven A large tin can is used as an a...

An air oven A large tin can is used as an air oven. A hole through the lid fitted with a cork holds a thermo- meter, and the saucer or dish rests on a wire gauze bridge placed

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