Which substance will have the largest temperature change if the same amount of heat is added to each of them? ethanol, c2h5oh(l) water, h2o(l) aluminum, al(s) iron, fe(s)?

Option (d) is the correct answer.

Explanation:

Specific heat is defined as the amount of heat necessary to raise the temperature of a unit mass of substance.

Relation between heat energy, specific heat and temperature change is as follows.

                            q =

where,       q = heat energy

                  m = mass

                  C = specific heat

              = change in temperature

Specific heat of ethanol is 2.46 , water is 4.18 , Al is 0.902, and Fe is 0.450 ,  

As specific heat is inversely proportional to change in temperature. Therefore, smaller is the value of specific heat more will be the change in temperature.

So, when mass of all the given species is constant. Then change in temperature of iron (Fe) will be the largest because it has the least value of specific heat.

Thus, we can conclude that out of the given options iron (Fe) will have the largest temperature change if the same amount of heat is added to each of them.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.