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

Define lattice energy, The energy released when one mole of ionic crystal i...

The energy released when one mole of ionic crystal is produced by the combination of the corresponding gaseous (+ve) and (-ve) ions brought from infinite distance is known as latti

Eqivalents, how do you calculate equivalents?

how do you calculate equivalents?

Explain lyophilic and lyophobic sols, Illustrate with examples: (a) Lyo...

Illustrate with examples: (a) Lyophilic and Lyophobic sols (b) Multimolecular and Macromolecular colloids (c) Homogeneous and Heterogeneous catalysis.

A cyclic ester, The lactone, a cyclic ester, can form an enolate ion, and t...

The lactone, a cyclic ester, can form an enolate ion, and this ion is alkylated by methyl iodide.

Geiger marsden experiment, Geiger Marsden experiment The Rutherford exp...

Geiger Marsden experiment The Rutherford experiment (also known as the Gold foil experiment or the Geiger-Marsden experiment) was an experiment to probe the structure of the at

Metallugy, general principal for extraction of metals

general principal for extraction of metals

Basic concepts, what are ion? under what conditions are they produced?

what are ion? under what conditions are they produced?

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