A tank containing liquid butane and one containing liquid propaneare sitting adj

Question

A tank containing liquid butane and one containing liquid propaneare sitting adjacent to one another. Each tank is equipped with aregulator with a pressure gauge. Classify these statements as trueor false. a. The pressure reading for the butane tank is higherthan that for the propanetank.       
                 
b.The pressure readings will change when more liquid is added tothe tanks.

c. If the tanks are placed outside and the sun warms each tank to46oC, the pressure readings will be higher than theywere initially.

d. If an equal number of moles of gas is allowed to escape rapidlyfrom each tank, the temperature of the butane tank will be lowerthan that of the propane tank.

Explanation / Answer

a. The pressure reading for the butane tank is higher than that forthe propane tank.    (False )   b.The pressure readings will change when more liquid is added tothe tanks. ( False ) ---- pressure would remain the same but theweight would change c. If the tanks are placed outside and the sun warms each tank to46oC, the pressure readings will be higher than theywere initially. ( True ) --- heating would increase theinternal pressure d. If an equal number of moles of gas is allowed to escape rapidlyfrom each tank, the temperature of the butane tank will be lowerthan that of the propane tank. ( True )

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