A gram of gasoline produces 45.0kj of energy when burned. gasoline has a density of 0.77/gml . how would you calculate the amount of energy produced by burning 46.l of gasoline? set the math up. but don't do any of it. just leave your answer as a math expression. also, be sure your answer includes all the correct unit symbols.

Respuesta :

Given:
Energy production rate, q = 45 kJ/L
Density, ρ = 0.77 g/L
Volume, V = 46 L

In consistent units, the total energy produced is
[tex]Q=(V\, L)*(\rho \, \frac{g}{L})*(q \, \frac{kJ}{g} )\\Q=(46\,L)*(0.77\, \frac{g}{L})*(45\, \frac{kJ}{L}) [/tex]
This will yield the energy in kJ.

Because the units are consistent, it will yield the correct answer.
All units may be converted to SI units, it required.
1 g = 10⁻³ kg in SI units
1 L is an accepted unit of volume in SI units.
1 kJ = 10³ J in SI units.


Answer: 1592307.7 kJ

Explanation:- [tex]Volume=\frac{Mass}{Density}[/tex]

[tex]{\text {Volume of gasoline present}}=\frac{1g}{0.77g/ml}=1.30ml=0.0013L[/tex]

Thus 0.0013 L of gasoline when burned produces = 45.0kJ

46 L of gasoline when burned produces =[tex]\frac{45.0kJ}{0.0013L}\times 46L=1592307.7kJ[/tex]