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How much mass is in 1 gallon of gasoline? If helium in a balloon at atmospheric P and T? |
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Answer» A volume of 1 gal equals 231 in3, the density is 46.8 lbm / ft3, so we get m = pV = 46.8lbm / ft3 x 1 x (231 / 123) ft3 = 6.256 lbm A more accurate value is p = 848 lbm / ft3. For the helium that density is 10.08 x 10-3 lbm / ft3 so we get m = pV = 10.08 x 10-3 lbm / ft3 x 1 x (231 / 123) ft3 = 0.00135 lbm |
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