Download the App!
Get 24/7 study help with the Numerade app for iOS and Android! Enter your email for an invite.
Question
Answered step-by-step
In the nineteenth century two scientists named Dulong and Petit noticed that for a solid element, the product of its molar mass and its specific heat is approximately $25 \mathrm{J} /^{\circ} \mathrm{C}$. This observation, now called Dulong and Petit's law, was used to estimate the specific heat of metals. Verify the law for the metals listed in Table $6.2 .$ The law does not apply to one of the metals. Which one is it? Why?
Video Answer
Solved by verified expert
This problem has been solved!
Try Numerade free for 7 days
Like
Report
Official textbook answer
Video by Susan Hallstrom
Numerade Educator
This textbook answer is only visible when subscribed! Please subscribe to view the answer
Chemistry 101
Chapter 6
Thermochemistry
Drexel University
University of Maryland - University College
Brown University
Lectures
05:27
In chemistry, a chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Both reactants and products are involved in the chemical reactions.
06:42
In chemistry, energy is what is required to bring about a chemical reaction. The total energy of a system is the sum of the potential energy of its constituent particles and the kinetic energy of these particles. Chemical energy, also called bond energy, is the potential energy stored in the chemical bonds of a substance. Chemical energy is released when a bond is broken during chemical reactions.
03:49
In the nineteenth century …
05:09
In $1819,$ Pierre Dulong a…
02:28
The Dulong-Petit law predi…
02:46
The French chemists Pierr…
03:19
The law of Dulong and Peti…
01:30
Use the Dulong-Petit law …
02:25
Specific Heats of Metals h…
00:33
Observe the molar heat cap…
02:35
See Exercise 5.104 for a d…
02:08
More than 150 years ago Pi…
01:09
More than 150 years ago P…
So there were a couple people do long and petite, and I'm not 100% sure of that. Pronunciation on day noticed in the 19th century that for solid elements the product of the molar mass times a specific heat is approximately equal to 25 J over degrees C, and we're gonna look at some of the metals on table 6.2 for this text. I'm specifically going to be looking at aluminum and gold, and aluminum has a molar mass. I'm just going to go to whole numbers. 27. Gold was 1 97 and the specific heats reach of these were 0.9 0.900 Jorg C degrees. And where am I here. 0.1 to 9 J over GC degrees. Okay. And if I do my math on this one, I get 24.3, which is approximately 25. And if I do my math on this one, I get 25.4, which is also approximately 25 will make the assumption the rest work. We're also asking this question which one of those in the list doesn't fit and that would be mercury because it's a liquid. And this is on Lee for solid elements, elements that are solids. Okay,
View More Answers From This Book
Find Another Textbook
01:40
The percentage yield of a reaction is 24.3%. If an experimental value of 114…
07:13
Solid KI (0.10 moles) is added to 1.0 L of the solution in Parts A, B and C,…
03:50
An oil drum weighs 18.11 kg. When it is filled, octane it weighs 55.32 kg. H…
06:51
02:48
What is the molecular formula for the hydrocarbon that is 83.20% carbon and …
02:24
What mass of iron(III) oxide must be used to produce 14.85 g of iron?
03:15
2No(g)+Br2(g) - 2NOBr(g)
00:57
A sample of creek water has a lead concentration of 2250mg/kg. What is the l…
01:29
What is the molar concentration of a solution that contains 3.0 mol in 600 m…
01:10
A solution is 20% m/v. What is the mass of dissolved solid in 150 mL of the …
