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
PolarNik [594]
3 years ago
14

Based in bonding theory, explain why heat capacity increases when you consider metals, ceramics and polymers.

Engineering
1 answer:
Sonbull [250]3 years ago
4 0

Answer:

Metals are good conductors are heat. Many applications of ceramics, such as their use as insulating materials cause higher heating capacity. In the case of polymers, we have to distinguish between the heat capacity of liquid, rubbery and glassy polymers. The heat capacity increases with increasing temperature, therefore, a liquid or rubbery polymer can hold more energy than a solid polymer.  

Explanation:

Valence bond (VB) theory is a chemical bonding theory that explains the chemical bonding between two atoms. Like molecular orbital (MO) theory, it explains bonding using principles of quantum mechanics. According to valence bond theory, bonding is caused by the overlap of half-filled atomic orbitals. The two atoms share each other's unpaired electron to form a filled orbital to form a hybrid orbital and bond together. Sigma and pi bonds are part of valence bond theory.

Bonding, Structure and Properties

  1. The bonding and structure of substances determine their properties.
  2. Bonding is the way the atoms are held together.
  3. The structure is the way the atoms are arranged relative to each other.
  4. There are two major types of structure: giant and molecular.
  5. Giant structures go on indefinitely, whereas molecular structures are made up of groups of atoms.

You might be interested in
2. When it comes to selling their crop, what are 3 options a farmer has when harvesting their grain?
tiny-mole [99]

Answer:

Sell his crop, use his crop as food, and sell his crop

Explanation:

6 0
3 years ago
1. Calculate the battery life in years when a pacemaker has the following characteristics: Battery Ampere-hours = 1.5 Pulse volt
Wittaler [7]

Answer:

battery life in year = 9 years and 48 days

Explanation:

given data

Battery Ampere-hours = 1.5

Pulse voltage = 2 V

Pulse width = 1.5 m sec

Pulse time period = 1 sec

Electrode heart resistance = 150 Ω

Current drain on the battery = 1.25 µA

to find out

battery life in years

solution

we get first here duty cycle that is express as

duty cycle = \frac{width}{period}      ...............1

duty cycle = 1.5 × 10^{-3}

and applied voltage will be

applied voltage = duty energy × voltage    ...........2

applied voltage = 1.5 × 10^{-3} × 2

applied voltage = 3 mV

so current will be

current = \frac{applied\ voltage}{resistance}   ................3

current = \frac{3}{150}

current = 20 µA

so net current will be

net current = 20 - 1.25

net current = 18.75 µA

so battery life will be

battery life = \frac{1.5}{18.75*10^{-6}}

battery life = 80000 hours

battery life in year = \frac{80000}{8760}

battery life in year = 9.13 years

battery life in year = 9 years and 48 days

4 0
3 years ago
In a voltage-divider biased pnp transistor, there is no base current, but the base voltage is approximately correct. The most li
N76 [4]

Answer:

the base-emitter junction is open and the emitter resistor is open

Explanation:

Because here there will be no base current only when the the base emitter junction is kept open and. Also when emitter resistor is kept open or with thus there will be no voltage drop across the Resistor meaning the base voltage Will be equal to that in the voltage divider circuitry

4 0
3 years ago
A 12 m thick layer of Chicago clay is doubly drained. This means that a very previous layer compared to the clay exists on top o
iren2701 [21]

Answer:

At 3 =99.60

At 6 =66.66

At 12 =33.38

Please see attachment for the percent consolidation.

3 0
3 years ago
Which is one of the aspects in PR game marketing?
mr_godi [17]
C, I took the test already.
7 0
3 years ago
Read 2 more answers
Other questions:
  • (Practice work, not graded)
    11·1 answer
  • Design a posttest-only experiment that would test each of the following causal claims. For each one, identify the study’s indepe
    13·1 answer
  • Air enters a compressor operating at steady state at 176.4 lbf/in.^2, 260°F with a volumetric flow rate of 424 ft^3/min and exit
    10·1 answer
  • A car is stopped at an entrance ramp to a freeway; its driver is preparing to merge. At a certain moment while stopped, this dri
    10·1 answer
  • A satellite at a distance of 36,000 km from an earth station radiates a power of 10 W from an
    8·1 answer
  • A 1/20 scale model of a wing is used to determine forces on the actual airplane. the 1/20 scale refers to the:_____
    10·2 answers
  • Why is engineering profession important ​
    11·1 answer
  • Characteristics of 3 types of soil​
    10·1 answer
  • Integrated circuits typically are mounted on ________, which are then plugged into the system board.
    6·1 answer
  • A wheel spins at a constant angular speed of 24rad/s.How many revolutions will the dosk go through in 5minutes?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!