Both trucks drove into a desert where the temperature was 110 degrees F. Based on the original filling temperatures, the propane in truck B will expand _________ than the liquid in truck A.

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Sorry, that wasn’t the correct answer. The propane liquid in truck B, which was filled at 20°F, will expand more than the liquid in truck A, which was filled at 80°F. The 90°F increase for truck B will cause more expansion than the 30°F increase for truck A.

Yes!  The propane liquid in truck B, which was filled at 20°F, will expand more than the liquid in truck A, which was filled at 80°F. The 90°F increase for truck B will cause more expansion than the 30°F increase for truck A.

Propane	Temp. °F	Approx. pressure psi	Liquid volume (gal.)	Expansion %
Filling truck A	80	141	3102	--
Filling truck B	20	48	2825	--
Driving truck A	110	215	3293	6.0
Driving truck B	110	215	3293	16.5