I'm a little confused. Lets say i have a rigid,non-expandable container. If i heat the container,the gas molecules gain Kinetic energy. I initially learnt that the gas molecules will hit the wall with a larger force,hence larger pressure.But F=MA,so the gas molecules are accelerating?But what if they are not accelerating(high temperature,but not increasing temperature)??? I later learnt that it is the increase in number of frequent effective collision per unit time with the wall.But Pressure=Force/Area. So there is a relationship between force and frequency??