A blown up toy balloon at 5°C has volume equal to 420 cm3 The balloon is distended at 7 /8th of its maximum stretching capacity  if it is brought into a room at 27°C calculate the maximum temperature(in kelvin), at which it will burst.

Maximum capacityVmax×78=V1    :  V1=420×87=480mL  i) AT 27°C  :  V1T1=V2T2 ;    V2=(300×420)278=453.2cm3.Since 453.2 mL is less than 480 mL, balloon will not burst.(ii)    Tmax to burst balloon: V1T1=VmaxTmax;  420278=480 Tmax Tmax=(480×278)420=317.7K