A tank of helium has a volume of 50 liters and is under a pressure of 2,000 p. s.i.. This gas is allowed to flow into a blimp until the pressure
in the tank drops to 40 p. s.i. and the pressure in the blimp is 30 p. s.i..
What will be the volume of the blimp?

They can measure  the amount of energy gained or lost

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.