You throw a barbeque for your friends. Before you start the grill, your propane tank has a pressure of 78 psi. When you’re finished grilling, the temperature is 95°F and the propane tank reads 74 psi. Come nighttime the outside temperature drastically decreases to 20°C. What is the pressure of the propane tank at night?
Select one:
a. 16 kPa
b. 485 kPa
c. 107 kPa
d. 2300 kPa
Answers: 2
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