A dive tank is designed and built to be safe if the difference between the pressure inside the tank and the pressure outside the tank does not exceed 12 atm. A diver has the tank filled at the dive store at a temperature of 20o C to a pressure of 10 atm. The diver places the tank into his car and parks the car in the sun where the temperature of the gas in the tank increases to 60o C. Is the tank safe at this temperature? You must show the setup of an equation, the final answer with units , and a short statement whether the tank is safe or not.

Pressure is 11.4 atm and it is asfe.

Explanation:

To calculate the final pressure of the system, we use the equation given by Gay-Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

where,

are the initial pressure and temperature of the gas.

are the final pressure and temperature of the gas.

We are given:

Putting values in above equation, we get:

As the pressure must not exceed 12 atm, and the pressure comes out to be 11.4 atm the tank is safe at this temperature.

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