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

Saytzeff rule - elimination reaction, Saytzeff rule - Elimination Reaction ...

Saytzeff rule - Elimination Reaction As per to that principle, major part is the most substituted alkene that is , major product is obtain by elimination of H

Stochiometry, How many grams of CO2 are produce if 42.0 mol of LiOH react?

How many grams of CO2 are produce if 42.0 mol of LiOH react?

Physical properties of group 3 elements, Explain trend in variation of the ...

Explain trend in variation of the atomic size properties from Boron and Thallium

Electrovalent bond formation depends on, Electrovalent bond formation depen...

Electrovalent bond formation depends on: (1) Ionization energy (2) Electron affinity (3) Lattice energy (4) All the three above Ans:  All the three above

Inorganic chemistry, H2O is liquid buy why H2s gas? who it is one group.

H2O is liquid buy why H2s gas? who it is one group.

Carbocations in benzene ring, How to find stability of carbocations in benz...

How to find stability of carbocations in benzene ring..??? How to find optically inactive isomers  ??? (say of--C2H5Cl) How to find the weakest C-X (carbon-halogen bond in a benz

Interactive periodic table, Interactive periodic table In this interact...

Interactive periodic table In this interactive periodic table animation you can view details of all components through clicking on it. You can select the colored through option

Aluminium metal is frequently used as a reducing agent. why?, Aluminium met...

Aluminium metal is frequently used as a reducing agent for the extraction of metals such as Chromium, Manganese etc. Explain why? Ans) The free energy change for the formation o

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