A spherical balloon of volume V contains helium at a pressure P. How many moles of helium are in the balloon if the average kinetic energy of the helium atoms is `vec(K)`?

A spherical balloon of volume 4.00 xx 10^(3) cm^(3) contains helium at a pressure of 1.20 xx 10^(5) Pa . How many moles of helium are in the balloon if the average kinetic energy of the helium atoms is 3.60 xx 10^(-22) J ?

A sealed container contains helium gas at 300 k . If it is heated to 600 K , the average kinetic energy of the helium atoms

A helium atom is two times heavier than a hydrogen molecule. At 298 K , the average kinetic energy of a helium atom is

Helium atom is two times heavier than a hydrogen molecule. At 25^(@)C , the average kinetic energy of a helium atom is :

Helium atom is two times heavier than a hydrogen molecule. At 289 K, the average kinetic energy of a helium atom is

Helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a Helium atom is

A sealed container with negligible thermal cofficient of expansion contains helium (a monatomic gas). When it is heated from 300 to 600 K, the average kinetic energy of the helium atom is