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
Gelneren [198K]
3 years ago
5

What is a temperature scale used by scienctist?

Chemistry
1 answer:
laila [671]3 years ago
3 0
To measure the kinetic engery  from the inside and outside of something to be able to tell how hot or coll something is.. without touching it also
You might be interested in
a student performed an experiment, using a cocktail peanut, before it was burned the peanut half weighed .353 g. After burning t
tekilochka [14]
Not sure but it should be on google
5 0
3 years ago
What is dalang puppeteer​
natulia [17]
DescriptionThe dhalang or dalang is the puppeteer in an Indonesian wayang performance. In a performance of wayang kulit, the dalang sits behind a screen made of white cotton stretched on a wooden frame. Above his head, hanging from beams attached to the top of the screen, is the lamp, which projects the shadows onto the screen
3 0
3 years ago
At 20 ∘C the vapor pressure of benzene C6H6 is 75 torr and that of toluene C7H8 is 22 torr. Assume that benzene and toluene fo
Olegator [25]

Answer:

a) Xbenzene = 0.283

b) Xtoluene = 0.717

Explanation:

At T = 20°C:

⇒ vapor pressure of benzene (P*b) = 75 torr

⇒ vapor pressure toluene (P*t) = 22 torr

Raoult's law:

  • Pi = Xi.P*i

∴ Pi: partial pressure of i

∴ Xi: mole fraction

∴ P*i: vapor pressure at T

a) solution: benzene (b) + toluene (t)

∴ Psln = 37 torr;   at T=20°C

⇒ Psln = Pb + Pt

∴ Pb = (Xb)*(P*b)

∴ Pt = (Xt)*(P*t)

∴ Xb + Xt = 1

⇒ Psln = 37 torr = (Xb)(75 torr) + (1 - Xb)(22 torr)

⇒ 37 torr - 22 torr = (75 torr)Xb - (22 torr)Xb

⇒ 15 torr = 53 torrXb

⇒ Xb = 15 torr / 53 torr

⇒ Xb = 0.283

b) Xb + Xt = 1

⇒ Xt = 1 - Xb

⇒ Xt = 1 - 0.283

⇒ Xt = 0.717

6 0
3 years ago
PLEASEEEEEE answer these 2 questions!! I WILL GIVE BRAINLIEST AND POINTS
Olegator [25]

Answer: B  then D

Explanation:

8 0
3 years ago
What main criterion determines major divisions in the geologic time scale?
koban [17]

The answer is B. the occurrence of huge events in Earth's natural history

The geologic time scale is a system of chronological dating that relates geological strata to time. It is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events that have occurred during Earth's history.

4 0
3 years ago
Other questions:
  • Which gas is used by divers and why
    13·1 answer
  • Abby fills a graduated cylinder with 3 mL of water. She
    13·1 answer
  • The oxidation of pyruvate is not the only process that generates acetyl-CoA. In particular, fatty acids are broken down through
    5·1 answer
  • Calculate the density of gold (in units of g/mL) if a 5.00 cm cube has a mass of 2.41kg
    6·2 answers
  • What is this wave transferring to the tree?
    13·1 answer
  • Scientists are studying compounds in a newly discovered rain forest plant. the plant produces an unusual substance that local pe
    8·2 answers
  • What does it mean when say that a 200-ml sample and a 400-ml sample of a solution of salt have the same
    6·1 answer
  • Rutherford and his colleagues fired a beam of small, positively charged alpha particles at thin gold foil. Some of these alpha p
    14·1 answer
  • According to Hund's rule of maximum spin multiplicity, how many singly-occupied orbitals are there in the valence shells of the
    9·1 answer
  • Please help with 2,3,4 will give brainlist asap
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!