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

Determine about the antiferromagnetic materials, Determine about the Antife...

Determine about the Antiferromagnetic materials Antiferromagnetic materials are materials in which almost all magnetic dipoles are linked up antiparallel to each other. Its sus

Antipyretic - chemistry in action, Antipyretic: Antipyretic is a drug ...

Antipyretic: Antipyretic is a drug that is accountable for lowering the temperature of feverish object. The central nervous system, specifically the hypothalamus, takes an sig

Show reduction to metals, Q. Show Reduction to Metals? After removed of...

Q. Show Reduction to Metals? After removed of the gangue, i.e. impurities physically mixed with the metal elements, the concentrated ore becomes ready for the isolation of meta

Types of interferences - atomic absorption spectrophotometry, Types of inte...

Types of interferences - Atomic absorption spectrophotometry: Three types of interferences viz., chemical, spectral and physical interferences are encountered in AAS. These re

Stoichiometry, What is the difference between reaction stoichiometry and co...

What is the difference between reaction stoichiometry and composition stoiciometry?

Atomic structure and chemical bonding, Ask question #MinimName two compound...

Ask question #MinimName two compound that are covalent when taken pure but produce ions when dissolved in water. um00 words accepted#

Determing an electrovalent linkage, This of the following is an electroval...

This of the following is an electrovalent linkage: (1) CH 4                 (2) MgCl 2              (3)  SiCl 4                               (4) BF 3 Ans: MgCl

Vat dyes - classification of dyes, Vat dyes: These dyes are insoluble i...

Vat dyes: These dyes are insoluble in water and cannot be helpful directly. These dyes on decline along with sodium hydrosulphite (NaHSO 3 ) in a vat make a soluble compound th

Assignment, How can we get assignment and earn money,?

How can we get assignment and earn money,?

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