A400 ml sample of nitrogen in a sealed, inflexible container has a pressure of 1200 torr at a temperature of 250 k. it is known that the container will rupture at a pressure of 1800 torr. at what temperature will the container rupture?

By  use     of   gay   lussacs   law
state  b  that  for  a  given  mass  and  constant  volume  of   an  ideal   gas  .the pressure  exerted  on    the  side   of  its   container  is  directly  proportional   to  its  obsolute  temperature
T2=  (p2  x  T1)/P1
  
(1800  x250)  /  1200=  375K

The density of water is 1 g/cm cubed and in order for the pebble to sink its density has to be greater than the density of water and in order for the twig to float its density has to be less than the density of water