A gas has experienced a small increase in volume but has maintained the same pressure and number of moles. According to the ideal gas law, how has the temperature of the gas changed?

Answers

Answer 1

Answer: temperature has increased

Ideal Gas Law:

pressure * volume = (number of moles of gas) * (0.08206) * (temperature)

or short-hand:
PV = nRT

this equation can be transformed to solve for temperature as:
T = PV / nR

given there is no change in pressure and the volume of the container has increased, we know the temperature increases because volume is in the numerator--a larger number on top reflects an overall greater number.

Answer 2

Answer:

B) It has increased slightly

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Calculate the mass in grams of 2.56x10 -3 mol of iron.

Answers

Final answer:

The mass in grams of 2.56x10-3 mol of iron is 0.143 g.

Explanation:

To calculate the mass in grams of 2.56x10-3 mol of iron, you need to use the molar mass of iron. The molar mass of iron is 55.845 g/mol. To find the mass in grams, you can use the following step-by-step calculation:

Mass (g) = Number of moles x Molar mass

Mass (g) = 2.56x10-3 mol x 55.845 g/mol = 0.143 g

Learn more about Calculating mass of a substance using moles here:

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How does hydrogen ion change into hydrogen atom

Answers

if atom lose electrons they become positively charge ion & when they gain atom they become negatavily charge ion

Two very stable compounds, Freon-12 and Freon-14, are used as liquid refrigerants. A Freon-12 molecule consists of one carbon atom, two chlorine atoms, and two fluorine atoms. A Freon-14 molecule consists of one carbon atom and four fluorine atoms.81 In the space in your answer booklet, draw a structural formula for Freon-12. [1]

82 To which class of organic compounds do Freon-12 and Freon-14 belong? [1]

Answers

81. There is 1 carbon, 2 chlorine and fluorine atoms in Freon 12. To draw them it forms a cross with C in the middle and Cl and F both on the opposite side.
Cl
l
F - C- F
l
Cl

82. Freon-12 and Freon-14 are called halocarbons or just halides.

Answer:

- The structural formula for Freon-12 (CCl2F2)

Cl - C - Cl

It has the same structure as methane (CH4) with Hydrogen atoms replaced by Chlorine and Fluorine

- Freon-12 and Freon-14 belong halocarbons, a compound in which the Hydrogen of a hydrocarbon is replaced by halogens, like Chlorine and Fluorine.

What are superconductors?a. Materials that need high heat to transfer energy
c. Materials that only transfer thermal energy
b. Materials that transfer energy with no resistance
d. Materials that convert thermal energy into potential energy User: ______ is/are usually the best conductor/s.
a. Metals
c. Air
b. Water
d. Minerals

Answers

Superconductors are materials that transfer energy with no resistance. Metals are usually the best conductors.

Superconductivity is a phenomenon characterized by zero electrical resistance at below critical temperatures. Metals are the best conductors because the molecules inside them are tightly packed, which allows electricity to travel efficiently.

Water is also a good conductor because of the ions and minerals in it. However, water itself is not a conductor of electricity.

The answer would be B

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Egi calculate 0.2 mole of H₂0 into Volume

Answers

Answer:

To calculate the volume of 0.2 moles of H₂O (water), we need to use the relationship between moles, volume, and molar concentration. The molar volume of a gas at standard conditions (0°C and 1 atm pressure) is approximately 22.4 liters/mol. However, since water is in liquid form, we'll need to consider its density to calculate the volume.

The molar mass of water (H₂O) is approximately 18.01528 g/mol.

Given:

Moles of H₂O = 0.2 moles

Molar mass of H₂O = 18.01528 g/mol

We can calculate the mass of 0.2 moles of H₂O:

Mass = Moles × Molar mass

Mass = 0.2 moles × 18.01528 g/mol = 3.603056 g

Now, let's convert the mass to volume using the density of water. The density of water at room temperature (around 20°C) is approximately 1 g/cm³.

Given:

Mass = 3.603056 g

Density of water = 1 g/cm³

Volume = Mass / Density

Volume = 3.603056 g / 1 g/cm³ = 3.603056 cm³

So, the volume of 0.2 moles of H₂O is approximately 3.603 cm³ at room temperature and pressure.

Explanation:

According to the following reaction, how many moles of carbon monoxide will be formed upon the complete reaction of 23.1 grams of benzene (C6H6) with excess oxygen gas?benzene (C6H6) (l) + oxygen (g) carbon monoxide (g) + water (g)

Answers

The balanced chemical reaction is:

C6H6 + 9/2O2 = 6CO + 3H2O

We are given the amount of benzene to be used for the reaction. This will be the starting point for the calculations.

23.1 g C6H6 ( 1 mol C6H6 / 78.12 g C6H6 ) ( 6 mol CO / 1 mol C6H6 ) = 1.77 mol CO is produced from the reaction

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A 25°C sample of gas has a volume of 5.0 L. What will it’s volume be if it is heated to 50.0°C?