Problem 112

A backpacker carries 2.5 L of white gas as fuel for her stove. How many pounds does the fuel add to her load? Assume the density of white gas to be 0.79 g/cnr5.

Solution 112 :

Given :

Volume of gas = 2.5 L

Density of gas = 0.79 g.cm3.

fuel added to load in pounds(lb) = ?

Mass of fuel is :

= Volume of fueldensity of fuel.

Here the volume of fuel is in L and density is in g/cm3. So,let’s convert the volume in L to cm3:

1 L = 1000 cm3

Therefore,2.5 L in cm3 is :

= 2500 cm3.