Amixture of propane and butane is burned with air. partial analysis of the stack gas produces the following dry-basis volume percentages: 0.0810% c3h8, 0.1140% c4h10, 1.049% co, and 9.905% co2. the stack gas is at an absolute pressure of 780.0 mm hg and the dew point of the gas is 50.71°c. calculate the molar composition of the fuel. (note: carry five significant figures throughout the calculation.)

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.

Reducing agents  oxidized by the reaction