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
IgorC [24]
4 years ago
11

A container of oxygen has a volume of 30.0 mL and a pressure of 72.5 psi. If the pressure of the oxygen gas is reduced to 28 psi

and the temperature is kept constant, what is the new volume of the oxygen gas?
Chemistry
1 answer:
OLga [1]4 years ago
8 0

Answer:

THE NEW VOLUME OF THE OXYGEN GAS AT 28 PSI FROM 72.5 PSI IS 0.078 L.

Explanation:

Initial volume of the oxygen in the container = 30.0 mL = 30 / 000 L = 0.03 L

Initial pressure of the oxygen = 72.5 psi =  1 psi = 6890 pascal

Final pressure = 28 psi

Final volume = unknown

First convert the mL to L and since both pressures are in similar unit that is psi; there is no need converting them to pascal or other standard unit of pressure. They cancel each other out.

This question follows Boyle's equation of gas laws and mathematically it is written as:

P1 V1 = P2 V2

Re-arranging by making P2 the subject of the formula, we have:

V2 = P1 V1 / P2

V2 = 72,5 * 0.03 / 28

V2 = 2.175 /28

V2 = 0.0776 L

The new volume of the oxygen gas at a change in pressure from 72.5 psi to 28 psi is 0.078 L.

You might be interested in
Suppose that 33.3 J of heat is added to an ideal gas. The gas expands at a constant pressure of 1.45 104 Pa while changing its v
levacccp [35]

Answer:

ΔU = 25.8 J

Explanation:

The gas absorbs 33.3 J of heat, that is, Q = 33.3 J.

The work (W) of expansion can be calculated using the following expression:

W = -P. ΔV

where,

P is the external pressure

ΔV is the change in volume

W = -1.45 × 10⁴ N . m⁻² × (8.40 × 10⁻⁴ m³ - 3.24 × 10⁻⁴ m³) = -7.48 J

The change in the internal energy (ΔU) is:

ΔU = Q + W

ΔU =  33.3 J + (-7.48 J) = 25.8 J

5 0
4 years ago
Which statement is true of a chemical change? (Plato)
OleMash [197]

Answer:

A

Explanation:

The answer A is the best answer because it contains the most general characteristic of a chemical change.

5 0
3 years ago
Read 2 more answers
Why do you think that scientists in the 20th century thought that it was important to “unlock” the structures of the atom?
Soloha48 [4]

Answer:

The 20th century saw huge advances in our understanding and use of the nucleus. For instance, in 1939 scientists Otto Hahn, Lise Meitner and Otto Frisch discovered nuclear fission – a process by which radioactive materials release energy when they are induced to split.

Realising the huge amount of energy that such a reaction produces, scientists were tasked with developing this new knowledge initially for harm in nuclear weapons. Just six years after fission’s discovery, it was harnessed in the atom bombs that destroyed the Japanese cities Hiroshima and Nagasaki, and controversially ended the Second World War. Later, much more powerful hydrogen bombs were developed that combined fission with the process powering the Sun – fusion.

Hope this helps! PLEASE GIVE ME BRAINLIEST!!!!! =)

7 0
3 years ago
What is metallic bonding , properties and everything about it?
Elodia [21]
Metallic bonding

The particles in a metal are held together by metallic bonds.

High melting and boiling points

Metallic bonds are strong and a lot of energy is needed to break them. This is why metals have high melting points and boiling points.

Conducting electricity

Metals contain electrons that are free to move in the metal structure, carrying charge from place to place and allowing metals to conduct electricity well.

Metallic bonding - Higher tier

Metallic bonding is the strong attraction between closely packed positive metal ions and a 'sea' of delocalised electrons.

3 0
3 years ago
An oxygen atom has two electron shells and 6 valence electrons. how many total electrons does this atom have?
Lerok [7]
6 electrons in total
2 on the first shell
4 on the second shell
8 0
4 years ago
Other questions:
  • Which of the following forest management practices is the most harmful to forest ecosystems?
    7·2 answers
  • Chocolate candy melting in your hand is what type of heat transfer
    14·1 answer
  • Kara shines a blue light and a red light onto paper as shown in the figure below. If the paper is
    9·1 answer
  • I2 + Na2S2O3 → NaI + Na2S4O6 Balance the equation, if necessary.
    15·2 answers
  • If an atom has 6 protons and 7 neutrons it will have 7 electrons if it is a neutral atom.
    10·2 answers
  • The photo shows wires made of pure copper, an element,
    12·1 answer
  • Which of the following practices below are used to help conserve soil?
    14·1 answer
  • What is a Bohr model?
    15·2 answers
  • Emma constructed a simple motor. When connected correctly, the coil of copper wire spins. Which of the following best describes
    8·1 answer
  • What’s the empirical formula of taurine
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!