Why do the tyres of the vehicles burst during summer? The explanation of most is -According to Charles' law if the temperature increases volume should also increase and hence the tires burst. But it is also that if volume increases pressure decreases (Boyle's law). So the pressure of the gases should lessen and hence tires shouldn't burst. I know there is some flaw in my logic. But I can't find it. Help!
 A: The volume increase of the tyre when it's hot is small, and so the pressure increase in a hot tyre is significant.
In addition, high temperatures cause rubber to weaken, which increases the chance that the tyre will pop. 
By far the worst situation for a tyre is when it is not only hot, but also rolling at speed. In this condition, the flexural stresses inside the tyre are great and these stresses, plus the reduction in strength of the rubber with heat, can cause the tyre to fly to pieces. 
Tyres intended for high speed use at high temperatures must be made from rubber compounds that are specifically designed to withstand heat without weakening. 
A: In summer's, temperature is very high and we know that according to Gay-Lussac's law, pressure exerted by the gas is directly proportional to the temperature. So, in tyres of vehicles due to high temperature pressure exerted by the gas present in the tyre increases and the ture get bursted out.
A: in summer black asphalt in mid-day gets very hot, tires flexing as they roll generate more heat, the rubber compounds soften. the air pressure increases as the air heats and expands. All these conditions adversely affect aged tires. Also tires aired up to 32 psi in the coldest of winter can easily go up to 38 psi or more just sitting in your driveway on a hot summer day. Tire pressure should be checked several times a year.
