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bija089 [108]
3 years ago
13

The specific heat of gold is 0.031 calories/gram°C and the specific heat of silver is 0.057 calories/gram°C. If equal amounts of

each metal are exposed to equal heating, which will heat up faster?
Chemistry
2 answers:
OLga [1]3 years ago
8 0

Answer : Gold will heat up faster.

Explanation : Given,

The Specific heat of Silver and gold are 0.057 & 0.0314 calories/gram^{0}C respectively.

Specific heat is the amount of energy/heat required to raise the temperature of 1 Kg mass by 1 Kelvin.

The formula of Specific heat is,

q=m\times c\times (T_{final}-T_{initial})

Where,

c = Specific heat

q = Heat required

T_{final} = final temperature

T_{initial} = initial temperature

we are taking initial temperature as zero. According to the question, the mass and the heat are same.

Now put all the values in above formula, we get

For gold,

q=m\times 0.031\times (T_{gold}-0)        .........(1)

For silver,

q=m\times 0.057\times (T_{silver}-0)      ......... (2)

Now equating equation (1) and (2), we get

T_{gold}=1.83\times T_{silver}

From this, we conclude that the temperature of gold is 1.83 times higher than the temperature of silver.

Therefore, Gold will heat up faster.  

Vikki [24]3 years ago
3 0
I think the substance that will heat up faster would be the silver metal since it has a higher heat capacity. Heat capacity is the amount of heat needed to raise the temperature of the system into one degree. Heat capacity and heat energy is directly related so higher value of heat capacity would lead to higher heat energy.
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The study of chemicals that, in general, do not contain carbon is traditionally called what type of 18?
Pie
I don't know what you mean by type of 18, but it is called inorganic chemistry.
5 0
3 years ago
What happens to the reactivity of nonmetals within a group from top of the group to the bottom?​
andreev551 [17]

As you go down a group, the atoms get bigger. The bigger the atom, the more unstable it is. The more unstable it is, the more reactive the atom will be. So, as you go down a group, the nonmetals will become more reactive.

6 0
3 years ago
A chemist makes 940. mL of sodium carbonate (Na_2CO_3) working solution by adding distilled water to 200. mL of a 0.171 m stock
Alexxandr [17]

Answer:

The answer is 0.0698 M

Explanation:

The concentration was prepared by a serial dilution method.

The formula for the preparation I M1V1 = M2V2

M1= the concentration of the stock solution = 0.171 M

V1= volume of the stock solution taken = 200 mL

M2 = the concentration produced

V2 = the volume of the solution produced = 940 mL

Substitute these values in the formula

0.171 × 200 = 490 × M2

34.2 = 490 × M2

Make M2 the subject of the formula

M2 = 34.2/490

M2 = 0.069795

M2 = 0.0698 M ( 3 s.f)

The concentration of the Chemist's working solution to 3 significant figures is 0.0698M

6 0
3 years ago
A solution contains the ions Ag , Pb2 , and Ni2 . Dilute solutions of NaCl, Na2SO4, and Na2S are available to separate the posit
Delicious77 [7]

Answer:

The solutions should be added in this order NaCl > Na2SO4 > Na2S

Explanation:

Silver is insoluble as a chloride, so the silver ions get precipitated on addition of chloride ion as silver chloride.  This means Ag+ would be removed the first.

So we will add NaCl in the first step.

The following reaction will occur.

Ag+ + Cl- → AgCl(s)

Both, Pb2 and Ni are soluble as chlorides. (lead chloride is soluble as a hot solution but will ppt when colder).

When we add Na2SO4, Pb2+ will get precipitated (because it's insoluble) as PbSO4 and Ni will remain soluble as NiSO4 is soluble in water.

The reaction that will occur is:

Pb^2+ + SO4^2- → PbSO4(s)

Nickel is insoluble as a sulfide. So when we will add Na2S, nickel will be precipitated as sulfide and be able to separate and be collected.

The solutions should be added in this order NaCl > Na2SO4 > Na2S

6 0
3 years ago
What is the pH of a solution with a hydrogen ion concentration of 4.5 x<br> 10-6 M ?
Fittoniya [83]

Answer:

<h2>5.35 </h2>

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ {H}^{+} ]

We have

pH =  -  log(4.5 \times  {10}^{ - 6} )  \\  = 5.346787...

We have the final answer as

<h3>5.35 </h3>

Hope this helps you

6 0
3 years ago
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