Which quantity represents 0.500 Mole at STP
Answers
Final answer:
0.500 mole of any gas at standard temperature and pressure (STP) is equivalent to 11.2 liters. This is calculated using Avogadro's Law.
Explanation:
The quantity that represents 0.500 Mole at Standard Temperature and Pressure (STP) refers to the volume of gas. According to Avogadro's law, which states that equal volumes of gases at the same temperature and pressure contain an equal number of molecules, 1 mole of any gas at STP occupies a volume of 22.4 liters. Therefore, 0.500 mole of a gas at STP would occupy a volume of 11.2 liters.
Here's how you calculate this: Use Avogadro's law proportion, which is V1/n1 = V2/n2. Given n1 is 1 mole, V1 is 22.4 liters (which are standard values at STP) and n2 is 0.500 mole (your desired quantity), you can solve for V2 :
V2 = V1 * n2 / n1 = 22.4 L * 0.500 mol / 1 mol = 11.2 L.
So, 0.500 mole of any gas at STP would have a volume of 11.2 liters.
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An acid-base indicator is used in what type of reaction?
Answers
Answer:
R717
Explanation:
For an equipment room having R717 in the systems, a refrigerant detector is not needed. Provided the mechanical ventilation systems are working continuously so that the leaked refrigerant is being thrown out of the room
Answers
a. True
b. False
Answers
Answer:
True. A gas does not have a definite volume. Therefore, making this statement correct.
Explanation:
true
(2) gamma radiation, alpha particle, beta particle
(3) positron, alpha particle, neutron
(4) neutron, positron, alpha particle
Answers
Answer: Option (4) is the correct answer.
Explanation:
An alpha particle is basically a helium nucleus and it contains 2 protons and 2 neutrons. Symbol of an alpha particle is or
.
This means that an alpha particle carries a +2 charge.
A positron is a small particle which contains a +1 charge. And, a positron is represent by the symbol .
A neutron is a sub-atomic particle present inside the nucleus of an atom. Charge on a neutron is 0.
A gamma particle is basically a photon of electromagnetic radiation with a short wavelength.
Symbol of a gamma particle is . Hence, charge on a gamma particle is also 0.
Therefore, we can conclude that group of nuclear emissions from neutron, positron, alpha particle is listed in order of increasing charge.
The group of nuclear emissions is listed in order of increasing charge is neutron, positron and alpha particle and the correct option is option 4.
Nuclear emissions refer to the particles and radiation that are emitted from the nucleus of an atom during a nuclear reaction or radioactive decay. These emissions include alpha particles, beta particles, gamma radiation, positrons, and neutrons.
- Alpha particles (α): These are helium nuclei consisting of two protons and two neutrons. They have a positive charge and relatively low penetrating power.
- Beta particles (β): These are high-energy electrons (β-) or positrons (β+) emitted during radioactive decay. Beta particles have a negative charge (β-) or positive charge (β+) and moderate penetrating power.
- Gamma radiation (γ): This is electromagnetic radiation of high energy and frequency. Gamma radiation has no charge and is highly penetrating.
- Positrons: Positrons are positively charged particles with the same mass as an electron but opposite charge. They are emitted during certain types of radioactive decay.
- Neutrons: Neutrons are electrically neutral particles found in the nucleus of an atom. They have no charge and are emitted during nuclear reactions or as a result of radioactive decay.
Thus, the ideal selection is option 4.
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B. How can the forces on a space probe be controlled so it will land
on Mars?
O C. What type of substances make up the soil on Mars?
O D. Should the government spend taxpayers' money to send space
probes to Mars?
Answers
Answer:A
Explanation: Were there any living organisms is the answer because physics is the study of matter,its motion and behaviour of space and time and some other topics like energy and force.
Answer:
B
Explanation:
Forces and vectors on a probe are a physics thing
O jump up to a higher energy level
are absorbed into the nucleus
O are ejected from the nucleus
Answers
Answer:
After jumping to the higher energy level also called the excited state the excited electron would be in a less stable position, so it would quickly emit a photon to relax back to a lower, more stable energy level.