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o-na
1 month ago
7

An ideal gas contained in a piston which is compressed. The gas is insulated so that no heat flows into or out of it. 1) What ha

ppens to the temperature of the gas when it is compressed?
Chemistry
1 answer:
Anarel [2.9K]1 month ago
5 0
The temperature rises. Given that the gas in the container behaves as an ideal gas, it adheres to the ideal gas law, which is defined by the equation PV=nRT where P represents pressure, V denotes Volume, T stands for Temperature, R is the gas constant, and n is the number of moles. Given that the gas remains insulated without heat transfer, compressing the ideal gas with a piston implies that work is done on the system by its surroundings. As the ideal gas compresses, its volume decreases until it reaches a point where further compression is not feasible, meaning its volume cannot decrease any more. The equation PV=nRT indicates that once compression stops and volume stabilizes, the pressure of the ideal gas becomes directly proportional to the temperature, given that n and R remain constants. Furthermore, since pressure and volume are inversely related, a reduction in volume results in increased pressure. Consequently, as the ideal gas is compressed, the gas pressure elevates due to the smaller volume available, causing gas molecules to collide more frequently with one another and the piston, which in turn raises their speed and pressure. Thus, we can conclude that the work performed on the system by the environment results in an increased system temperature.
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Answer:

Explanation:

A mole is defined as the number of molecules divided by 6.02×10^23

Mole = (2×10^19)/(6.02×10^23)

Mole = 3.32×10^-5 mole

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5. Gabi has plans with her friends to go to a concert on her birthday in 4 days. She is so excited that she wants to know how ma
Alekssandra [3086]
Consequently, she feels very anxious because she has 345600 seconds to wait. Explanation: 60 seconds make up 1 minute, and 60 minutes constitute an hour. Each hour has 3600 seconds (60*60) and 24 hours make up a day. Hence, 3600 seconds multiplied by 24 hours results in 1 day equating to 86400 seconds—therefore, over four days, we have 86400 * 4 equating to 345600.
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1 month ago
Classify each of these soluble solutes as a strong electrolyte, a weak electrolyte, or a nonelectrolyte. Solutes Formula Hydroch
VMariaS [2998]

Answer:

The categorization of strong, weak, and non-electrolytes is detailed below, based on the examples presented in the question.

Explanation:

A strong electrolyte fully dissociates or nearly so in an aqueous environment; typically, strong acids, bases, and salts fall under this category. Examples of strong electrolytes include:

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A weak electrolytepartially ionizes in solution; weak acids and bases are primary instances. Examples consist of:

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5 0
2 months ago
Read 2 more answers
6.74 g of the monoprotic acid KHP (MW = 204.2 g/mol) is dissolved into water. The sample is titrated with a 0.703 M solution of
eduard [2782]

Answer:

The volume of calcium hydroxide solution utilized is 0.0235 mL.

Explanation:

2KHP+Ca(OH)_2\rightarrow 2H_2O+Ca(KP)_2

Moles of KHP = \frac{6.74 g}{204.2 g/mol}=0.0330 mol

In accordance with the reaction, 2 moles of KHP react with 1 mole of calcium hydroxide, thus 0.0330 moles of KHP will react with;

\frac{1}{2}\times 0.0330 mol=0.01650 mol of calcium hydroxide

The molarity of calcium hydroxide solution = 0.703 M

Volume of calcium hydroxide solution = V

Molarity=\frac{Moles}{Volume(L)}

0.703 M=\frac{0.01650 M}{V}

V=\frac{0.01650 M}{0.703 M}=0.0235 mL

The volume of the calcium hydroxide solution utilized is 0.0235 mL.

4 0
2 months ago
A 226.4-l cylinder contains 65.5% he(g) and 34.5% kr(g) by mass at 27.0°c and 1.40 atm total pressure. what is the mass of he in
Tems11 [2777]
Initially, we calculate the moles of gas using the ideal gas law:

PV = nRT
n = PV / RT
n = (1.4 * 226.4) / (0.082 *(27 + 273.15))
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Next, we apply the given percentages to estimate the moles of helium:
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Moles of helium = 8.44

We then use the formula:
Mass = moles * molar mass

Mass of helium = 8.44 * 4

Mass of helium = 33.76 grams.
5 0
2 months ago
Read 2 more answers
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