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
katen-ka-za [31]
3 years ago
11

We know that the law of conservation of energy states that energy can not be created or destroyed. It only changes form. Conside

r this energy transformation diagram. Assume that the energy input in this case is chemical potential energy and the useful energy output is kinetic energy, specifically a small fan to keep you cool. The diagram also shows how to calculate the efficiency of the fan. If the law of conservation of energy holds true, explain why the efficiency of the fan is not 100%.
A) No machine is ever 100% efficient; some energy is not transformed.
B) Some of the chemical potential energy is destroyed during the energy transformation.
C) Some of the chemical potential energy is transformed into heat energy as well as kinetic energy.
D) Conservation of energy also implies that some of the chemical potential energy is conserved or not used to run the fan.
Chemistry
2 answers:
White raven [17]3 years ago
7 0

Answer:

C) Some of the chemical potential energy is transformed into heat energy as well as kinetic energy

Explanation:

Just did it on USA Test Prep

mario62 [17]3 years ago
4 0

I'm not sure but I think the answer is C or D.

I think A is not possible because where did the energy go if it's not transformed?

B is definitely not because energy cannot be destroyed.

You might be interested in
What is the name of the ionic compound Csmc010-1.jpgS? cesium sulfur cesium sulfide dicesium sulfur dicesium sulfide
nika2105 [10]
Answer is: cesium sulfide.
Formula for ionic compound is: Cs₂S.
Ionic compound <span>electrically </span>neutral, cesium has charge +1 (2· (+1) = +2) and sulfur has charge -2.
Cesium sulfide is whide powder, soluble in water, pyrophoric in dry air, reductant.
5 0
3 years ago
Read 2 more answers
2. An element is all the way through,​
elena55 [62]
?? Is that the whole question?
6 0
2 years ago
A person's heart beats 72 times a minute. At this rate, how many times does it beat in one hour?
sesenic [268]

At one minute, a persons's heart beats 72 times.

Therefore, in one hour or 60 minutes, a person's heart will beat (60×72) times, i.e., 4320 times

Answer is 4320 times

6 0
2 years ago
Does anyone know how to do number 15?
vovikov84 [41]

Answer:

yes i do 980

Explanation:

i899 1/2

6 0
3 years ago
Determine the volume of an object that has a mass of 455.6 g and a density of 19.3 g/cm3. (1cm3 = 1ml) select one:
Dmitry [639]
The answer is B. The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume.

4 0
3 years ago
Other questions:
  • Which type of rock forms when an existing rock changes under extreme pressure and intense
    9·1 answer
  • Write a sentence that descrices how to determine the number of moles of a compound in known mass of a
    14·1 answer
  • It takes 770 joules of energy to raise the temperature of 50.0 g of Mercury by 110°C. What is the specific heat capacity of merc
    8·1 answer
  • How does the structure of amino acids allow them to form a polypeptide
    8·1 answer
  • Use the IUPAC nomenclature rules to give the name for this compound - Al2S3.
    5·2 answers
  • If I have 24.25 grams of nitrogen, how many moles is that?
    13·1 answer
  • Sodium chloride (table salt,) whose formula is NaCl: <br> Ionic <br> Covalent
    12·2 answers
  • The ability to burn is called
    13·2 answers
  • What is the purpose of chemistry?
    5·1 answer
  • Which of the following describes the location and energy of all the valence electrons
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!