1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sedaia [141]
2 years ago
7

Which sample is most likely to undergo the smallest change in temperature upon the absorption of 100 kJkJ of heat

Chemistry
1 answer:
lapo4ka [179]2 years ago
4 0

Answer:

Corresponde a la sesi�n de GA 4.5 UN PEQUE�O AUMENTO

La dilataci�n se define como el aumento de las dimensiones de un cuerpo cuando �ste absorbe calor. A excepci�n del agua, que se contrae cuando su temperatura aumenta de 0 hasta 4 �C. Cuando un cuerpo absorbe calor, sus mol�culas adquieren mayor energ�a cin�tica y ocupa mayor espacio; en consecuencia, el cuerpo aumenta sus dimensiones, el espacio que se da entre las mol�culas es conocido como coeficiente de dilataci�n y para cada material es diferente.

De los estados de la materia el s�lido es el que se dilata menos en comparaci�n con los fluidos, de los cuales el gas se dilata notablemente.

La dilataci�n se considera, de manera general, de tres tipos: lineal, superficial y c�bica.

Dilataci�n lineal

Este tipo de dilataci�n se presenta en cuerpos cuya dimensi�n principal es su longitud y es indispensable considerarla en cables, v�as de ferrocarril o varillas; se calcula por medio de un instrumento llamado pir�metro de cuadrante.

Graphics

Cuando dos varillas de diferente material son calentadas de 25 �C a 68 �C se observa que las dos aumentan su tama�o, pero no en la misma proporci�n. El incremento de tama�o de cada varilla, cuando su temperatura se eleva un grado celsius, se conoce como coeficiente de dilataci�n y se define como el aumento que experimenta un cuerpo por cada grado cent�grado que su temperatura aumente.

La dilataci�n lineal que experimenta un cuerpo cuando se calienta depende b�sicamente de tres factores, que son:

a) longitud inicial Graphics

b) incremento de temperatura Graphics

c) coeficiente de dilataci�n Graphics

La relaci�n matem�tica de estos tres factores establece la igualdad:

Graphics

Ejemplo:

�En cu�nto aumentar� su longitud un alambre de cobre cuya longitud inicial es de 100 m, si la temperatura var�a de -15 �C a 32 �C? El coeficiente de dilataci�n del cobre es de Graphics

Explanation:

You might be interested in
Is anyone good at chemistry if so can someone please help me NO LINKS PLEASE
joja [24]

Answer:

1. Mass of New atom = 208

2. Atomic number of the new atom is 82

3. Symbol of the new atom is Pb

Explanation:

²¹²₈₄Po —> ⁴₂He + ᴬZX

1. Determination of the mass A of the new atom.

212 = 4 + A

Collect like terms

212 – 4 = A

208 = A

A = 208

Therefore, the mass of the new atom is 208

2. Determination of the atomic number of the new atom.

84 = 2 + Z

Collect like terms

84 – 2 = Z

82 = Z

Z = 82

Therefore, the atomic number of the new atom is 82

3. Determination of symbol of the new atom

The atomic number of the new atom is 82. Comparing the atomic number of the new atom (i.e 82) with those in the periodic table, the new atom is Lead.

Lead has a symbol of Pb

Thus,

Mass of new atom (A) = 208

Atomic number of new atom (Z) = 82

Symbol of new atom (X) = Pb

Therefore,

ᴬZX = ²⁰⁸₈₂Pb

3 0
2 years ago
What is most likely to happen when two fluorine
maria [59]

Answer:electrons will be equally attracted to both

Explanation:

e2020

6 0
3 years ago
Read 2 more answers
What is the mass in grams of 1.204x10^24 atoms of carbon
Mekhanik [1.2K]
It should be 24g of carbon
4 0
2 years ago
Match the compounds as organic (O) or inorganic (I).
SashulF [63]
H2O2(I)
C6H6(O)
CO2(I)
C2H6(O)
HNO3(I)
7 0
2 years ago
Read 2 more answers
Radar detectors use radio waves to measure the speed of moving
bagirrra123 [75]

Answer:

1.7x10^8 Hz

Explanation:

Frequency could be explained as the number of occurrences of a repeating event at a time

Given:

wavelength = 1.8 meters

The frequency f of the waves can be calculated using f = c / λ

Where c (m/s) is the speed of the wave

λ (m) is the wavelength

Speed c= 3*10^8 m/s

Frequency f= 3*10^8 /1.8

Frequency= 1.7x10^8 Hz

Therefore,the frequency of waves from a radar detector is 1.7x10^8 Hz

6 0
2 years ago
Other questions:
  • How to predict the product of Al+Cl2
    12·1 answer
  • 2. What effect does amount of water have on plant growth?
    7·2 answers
  • if a 1.85g mass of zinc produces 475 mL og gas and your balloon weighs 0.574 g and the room temperature is 20.5°C. calculate the
    13·1 answer
  • Fill missing reagents.
    10·1 answer
  • A polar covenant bond is likely to form between two atoms that ________.
    6·1 answer
  • What is Very small and located on ER or located
    11·1 answer
  • A reservoir could supply an urban setting with (1 point
    14·1 answer
  • Write 0.034 in scientific notation.
    6·2 answers
  • Here is a pic of me I'm ugly i dont have all my pics of me anymore lost it all
    6·2 answers
  • The bacteria are known to be prokaryotes. Prokaryote means
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!