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

#titleelectrode potential .., how electrode potential through nernst equati...

how electrode potential through nernst equation can be determind/

Tendency to form electrovalent bond is largest, The tendency to form electr...

The tendency to form electrovalent bond is largest in (1)  A                                         (2) B (3)  C                                          (4)  D

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

According to heisenberg uncertainty principle, According to heisenberg unce...

According to heisenberg uncertainty principle: (1) E=mc 2                             (2) Δ x ×  Δp ≥ h/ 4 Π  (3)γ = h/ p     (4)  Δ x ×   Δ = h / 6 Π  Norma

Acid refractory : application and examples, what are the acid refractory an...

what are the acid refractory and its application and examples?

Hydrogen, hydrogen behave as a metal at low pressure only why

hydrogen behave as a metal at low pressure only why

Electronic configuration of h is, Electronic configuration of H -   is : ...

Electronic configuration of H -   is : (1) 1s 0                    (2)  1s 1        (3)1s 2               (d) 1s 1 , 2s 1 Ans: 1s 2

Describe, describe the reaction and constitution of glucose.

describe the reaction and constitution of glucose.

Determine molecular mass of atoms, Q. Determine Molecular Mass of Atoms ...

Q. Determine Molecular Mass of Atoms Ans: 6.02 x 10 23   is a really big number. It would be hard to count that many of any object. That's one of the reasons we count atoms b

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