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
Akimi4 [234]
3 years ago
5

The pressure of a certain amount of gas is directly proportional to the temperature (measured on the Kelvin scale) and inversely

proportional to the volume. A sample of gas at a pressure of 1 atmosphere occupies a volume of 1 cubic meter at a temperature of 249 Kelvin. When heated, the gas expands to twice its volume, but the pressure remains constant. To what temperature is it heated?
Chemistry
1 answer:
Svetradugi [14.3K]3 years ago
6 0

Answer:

not sure, but you know what?

Explanation:

you are amazing! keep doing what youre doing!

You might be interested in
This is my almost last question plsss help
Morgarella [4.7K]
The third one is correct, not sure abt another one
7 0
2 years ago
Read 2 more answers
Which is TRUE of the reactants in this displacement reaction? Fe + 2HCI --> FeCI2 + H2
Masteriza [31]
I would go with C, because you would always start with products and end with reactants.
7 0
2 years ago
Read 2 more answers
Which of the following properties would be the same among isotopes of the same element?
Viefleur [7K]

Answer : The properties which would be the same among isotopes of the same element are Flammability and Color

Explanation :

Isotopes are the elements that have same number of electrons and protons but they differ in number of neutrons.

The chemical properties of an element are determined by its valence electrons and since isotope have same number of electrons, they have similar chemical properties.

But isotopes have different number of neutrons. Neutrons are the subatomic particles which are present in the nucleus. They are charge less particles and they have mass. Therefore when the elements have different number of neutrons, their atomic masses differ.

As a result, isotopes have different mass related physical properties.

Let us discuss the given properties now

1) Flammability : Flammability in simple words means the ability of the substance to catch fire or the ability to burn. This is mainly dependent on the reactivity which is in turn dependent on the number of electrons.

Since the isotopes have same number of electrons, they show similar flammability.

2) Density : Density is defined as mass per unit volume. This property involves mass and we know that isotopes have different masses. Therefore they have different densities too.

3) Melting point : Melting point is a physical property which is mainly dependent on the molecular weight of the substance. Since isotopes have different masses, they tend to show different melting points.

4) Color : The color of the element is mainly dependent on the arrangement of electrons around the nucleus. Isotopes have same number of electrons which means the arrangement would also be the same. Therefore the isotopes of the same element do not show different colors.

The properties which would be same among isotopes of the same element are

1) Flammability

4) Color

5 0
3 years ago
Explain the principle upon which separation is achieved in a distillation column.
aalyn [17]

Answer:

The fundamental principle involves the formation of equilibrium and separation into distillate and bottoms governed by the equilibrium composition curve , number of stages and the purity with which the distillate is required.

Explanation:

Distillation is a type of the separation process by physical means of a mixture on basis of its difference in boiling point or vapor pressure .  

Where we can just heat the mixture and separate out the components i.e the component with lower boiling point will form vapor easily and can be later condensed whereas the component with higher boiling point will remain as residue.

In case of a distillation column the same principle is applied at different stages to separate multiple components .The stages are known as trays or plates . In general , there is a certain liquid on each of the plate, and the arrangements are made for the ascending vapors to pass through the liquid and make contact with it . The fundamental principle involves the formation of equilibrium and separation into distillate and bottoms governed by the equilibrium composition curve , number of stages and the purity with which the distillate is required.

7 0
3 years ago
Read 2 more answers
Whose model of the atom did J.J. Thomson prove to be incorrect with his Cathode-Ray tube experiments?
Brut [27]
JJ Thomson proved John Dalton's theory wrong, as Thomson discovered the electron. This showed that there were particles that were smaller than an atom, despite Dalton claiming that the atom is the smallest unit of matter.
7 0
3 years ago
Read 2 more answers
Other questions:
  • PLZ HELP HURRY PLZZZZZ WILL GIVE BRAINLIEST
    12·1 answer
  • In most animals, combinations of various tissues make up<br> functional units<br> called
    14·1 answer
  • What volume of O2(
    13·1 answer
  • In an unconformity between two layers of rock, how is the lower layer usually described?
    15·2 answers
  • What is the atomic number of neon?
    10·1 answer
  • What does the group number on the periodic table tell you about the electron configuration of a
    7·1 answer
  • Particle motion in ice is _________<br> than particle motion in water.
    6·1 answer
  • A population of Esherichia coli is given time to grow for eight generations. The final population is 1,996,800 cells. What was t
    6·1 answer
  • If the bag was made from a metal (like sturdy aluminum foil), do you think it would lose its heat faster or slower than the plas
    8·1 answer
  • What is the resistance of a 20.0-m-long piece of 12-gauge copper wire having a 2.053-mm diameter?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!