A gas sample is at 25°C and 1.0 atmosphere. Which changes in temperature and pressure will cause this sample to behave more like an ideal gas?(1) decreased temperature and increased pressure
(2) decreased temperature and decreased pressure
(3) increased temperature and increased pressure
(4) increased temperature and decreased pressure

Answers

Answer 1

Answer:

The changes in temperature and pressure will cause this sample to behave more like an ideal gas by increased temperature and decreased pressure. Hence option 4 is correct.

What is ideal gas?

Ideal gas is defined as a gas that physically behaves in accordance with the ideal, or general, gas law, which is a certain idealized relationship between pressure, volume, and temperature. The ideal gas law can be used to calculate the volume of gases that are produced or used. The ideal-gas equation is frequently used in chemical equations to convert between volumes and molar values.

Ideal gases are those that have little volume and no intermolecular forces. Real gas must have intermolecular attractions and volume in order to exist. At low pressure and high temperature, a genuine gas will act as it should.

Thus, the changes in temperature and pressure will cause this sample to behave more like an ideal gas by increased temperature and decreased pressure. Hence option 4 is correct.

To learn more about ideal gas, refer to the link below:

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Answer 2

Answer:

Answer : The correct option is, (4) increased temperature and decreased pressure

Explanation :

The conditions for ideal gas are, it has no intermolecular attractions and have negligible volume.

The ideal gas equation is,

$PV=nRT$

The conditions for real gas are, it has intermolecular attractions and have volume.

The real gas equation is,

$(P+(an^2)/(V^2))(V-nb)=nRT$

A real gas behave ideally at high temperature and low pressure conditions.

From the given options, option (4) increased temperature and decreased pressure is the correct option.

Hence, increased temperature and decreased pressure this sample to behave more like an ideal gas.

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