The blackbody curve for a star named beta is shown below. the most intense radiation for this star occurs in what spectral band? gamma rays ultraviolet visible infrared

Ultraviolet

Explanation:

The Electromagnetic spectrum involves gamma rays , X rays, ultra violet rays, visible rays, infrared rays, micro waves and radio waves which are arranged in order of increasing wavelength and decreasing frequency.

The wavelength range for gamma rays is less than 0.001 nm.

The wavelength range for ultraviolet rays is 1 nm to 400 nm.

The wavelength range for visible rays is 400 nm to 750 nm.

The wavelength range for infra red rays is 700 nm to 1000000 nm.

It can be seen from the graph that the most intense radiation for the star occurs near a wavelength of 200 nm , thus the most intense radiation occurs in ultraviolet band.

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm