Question

If volume of fixed mass of gas at constant
temperature is increased by 25%, the pressure of
gas will be
Decreased by 25%
Decreased by 20%
Increased by 20%
Decreased by 22%​

Answer 1

Answer:

Increases by 25%.

1.25

Explanation:

Ideal Gas Equation-The ideal gas equation is formulated as: PV = nRT. In this equation, P refers to the pressure of the ideal gas, V is the volume of the ideal gas, n is the total amount of ideal gas that is measured in terms of moles, R is the universal gas constant, and T is the temperature.

Solving way-

$PV=nRT$

As temperature remains constant

$PV= constant =k$

As pressure decreases by 20% so P

$=0.8P$

⇒$PV=(0.8P)V$

$0.8P$

On further solving we get-

$=1.25V$

So volume of gas increases by 25%.

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Answer 2

Answer: Increases by 25%.

Explanation:

Ideal Gas Equation – The ideal gas equation is formulated as: PV = nRT. In this equation, P denotes the pressure of the ideal gas, V is the volume of the ideal gas, n is the total amount of ideal gas measured in moles, R is the universal gas constant, and T is the temperature.

The ideal gas equation is formulated as: PV = nRT. In this equation, P denotes the pressure of the ideal gas, V is the volume of the ideal gas, n is the total amount of ideal gas measured in moles, R is the universal gas constant, and T is the temperature.

What does the ideal gas equation mean?

An equation that compares the product of the pressure and volume of one mole of gas to the product of its thermodynamic temperature and gas constant. Also called: ideal gas equation, ideal gas law.

What is an example of an ideal gas?

Many gases such as nitrogen, oxygen, hydrogen, noble gases, some heavier gases such as carbon dioxide, and mixtures such as air can be considered ideal gases within reasonable tolerances over.

What is the ideal gas explanation?

An ideal gas is defined as a gas in which all collisions between atoms or molecules are perfectly elastic and in which there are no intermolecular attractive forces. In such a gas, all internal energy is in the form of kinetic energy, and any change in internal energy is accompanied by a change in temperature.

According to the question:

PV=nRT

As temperature remains constant

PV=constant=k

As pressure decreases by 20% so,

P=0.8P

PV=(0.8P)V

On further solving we get 1.25V

So the volume of gas increases by 25%

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