Which of these statements is not true, according to kinetic theory?
a) there is no attraction between the particles of gas
b) only particles of matter in the gaseous state are in constant motion
c) the particles of a gas collide with each other and with other objects
d) all collisions between particles of gas are perfectly elastic

am i too late?

explanation:

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.