chemistry

A scuba tank is filled to 2500 psi(170 atm) in a dive shop at room temp/(25 degrees C) then stored in the trunk of a car on a hot day. What will be the new pressure in the tank if the temp. in the trunk reaches 60 degrees C? Express that pressure in atmospheres, not psi.

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  1. (P1V1)/T1 = (P2V2)/T2
    Use 170 atm for P1 and the answer will be in atm. Don't forget to use Kelvin for T1 and T2.

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  2. i don't understand this at alll

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  3. You plug in 170 atm for P1, there is no V1 or V2 in the problem, and T1 = 25 degrees C which si 273 + 25 = ??Kelvin. Continuing, P2 is what you want to know, V2 is not in the problem, and T2 is 60 degrees which must be convert to Kelvin. Then solve for P2.

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  4. okay so does it kinda look like this
    (170)/298/333...i kinda understand not really

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  5. We have P1/T1 = P2/V2
    You have P1 in the right place with the right number. Yuo have 298 ok. I don't see an equal sign. I don't see P2 (which you're solving for) and the 333 (the right number Kelvin) is not in the right place. Follow the guideline above. The equation is
    P1/T1 = P2/T2.
    Solve for P2 but substitute the numbers first and solve it step by step.

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  6. ok so 170/298=P2/333
    which is .570...how do i find P2

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  7. ok so 170/298=P2/333
    which is .570...how do i find P2

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  8. 170/298 = P2/333
    0.570 = P2/333
    P2 = 0.570 x 333 = ?? atm.

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