# math

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If a tank were blocked in (all inlets and outlets are closed) late in the evening with a temperature of 62F a pressure gauge attached to it would read an ambient pressure (14.7 PSIA). The next day, as the sun begins to shine directly on the tank, its inside temperature would begin to rise and so would the pressure. If the temperature inside the tank rised to 178F, how much pressure, in PSIG, would now be in the tank?

• math -

is this a gas filled tank?

use the combined gas law.

P1V1/T1=P2V2/T2

convert temps to kelvins, pressure PSI if you wish. I prefer to work everything in SI units, like the rest of the world.

• math -

Me too!

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