An ideal gas is a theoretical gas that perfectly follows the ideal gas law and has no intermolecular forces, behaving ideally under all conditions.

The mean free path is defined as the average distance a molecule travels before colliding with another molecule.

An ideal gas is defined as a gas that has no intermolecular forces and occupies no volume, allowing it to perfectly obey the ideal gas law under all conditions.

According to the kinetic theory, pressure is directly proportional to the average kinetic energy of the gas molecules, which is proportional to the square of their speed.

The significant figures are 7, 8, 9, and 0, totaling 4 significant figures.

In 0.03040, the leading zeros do not count, but the trailing zero after the decimal does. Therefore, there are 4 significant figures.

All digits in 123.45 are significant, giving a total of 5 significant figures.

The significant figures are 1, 5, and the trailing zero after the decimal point.

The number 2500 kg has two significant figures unless specified otherwise (e.g., with a decimal point).

The leading zeros are not significant, but the trailing zero is significant. Therefore, it has 4 significant figures.

The significant figures are 7, 8, 9, and the leading zeros are not counted.

Without a decimal point, 2500 has 2 significant figures.

4500 has 2 significant figures unless specified with a decimal point.

5000 has 1 significant figure unless specified with a decimal point (e.g., 5000.).

The kinetic energy of the emitted electrons is given by KE = hf - φ. If the frequency is doubled, the kinetic energy increases by a factor of four, since KE is proportional to the frequency.

Increasing the intensity of light increases the number of emitted electrons, as intensity is related to the number of photons hitting the surface.

The kinetic energy of the emitted electrons in the photoelectric effect depends on the frequency of the incident light, as per Einstein's photoelectric equation.

The work function is the minimum energy required to remove an electron from the surface of a metal.

The work function is the minimum energy required to remove an electron from the surface of the metal.

At the threshold frequency, the energy of the incident photons is equal to the work function, resulting in emitted electrons having zero kinetic energy.

The excess energy of the photon becomes the kinetic energy of the emitted photoelectrons.

The kinetic energy of emitted electrons increases linearly with the frequency of the incident light, according to the equation KE = hf - φ.

The kinetic energy of emitted electrons remains the same as it depends on the frequency, not intensity.

The kinetic energy of the emitted electrons increases with the frequency of the incident light, as given by the equation KE = hf - φ, where φ is the work function.

Increasing the frequency beyond the threshold increases the kinetic energy of the emitted electrons, as per the equation KE = hf - φ.

Increasing the wavelength decreases the frequency of the light, which reduces the energy of the incident photons, thus decreasing the kinetic energy of emitted electrons.

The kinetic energy of the emitted electron is equal to the energy of the incident photon minus the work function of the metal.

The frequency of light must be above a certain threshold to emit electrons, but once that is achieved, the photoelectric current depends on the intensity, not the frequency.

The first law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another.

The first law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another.