Answer:
An internal combustion engine is a heat engine in which the combustion of a fuel occurs with an oxidizer in a combustion chamber. The force of combustion is converted into mechanical energy through the use of levers and gears. The by products of combustion include energy, water vapor, carbon dioxide (CO2), nitric oxide (NO), nitrogen dioxide (NO2), and carbon monoxide (CO). The two primary drawbacks to the internal combustion engine are the primary energy source is non-renewable (fossil fuels) and the by products can have damaging effects on the environment.
Explanation:
The answer is C. mechanical energy because chemical energy gives our bodies the ability to move and function
The maximum wavelength that can break a Cl-Cl bond is 494 nm.
<em>Energy to break 1 Cl-Cl bond
</em>
Energy = (242 kJ/1 mol) × (1000 J/1 kJ) × (1 mol/6.022 × 10²³ bonds)
= 4.019 × 10⁻¹⁹ J/bond
<em>Wavelength of photon
</em>
<em>E</em> = h<em>f</em> = (h<em>c</em>)/λ
λ = (h<em>c</em>)/E = (6.626 × 10⁻³⁴ J × 2.998 × 10⁸ m·s⁻¹)/(4.019 × 10⁻¹⁹ J) = 4.94 × 10⁻⁷ m = 494 nm
C + O2 = CO2
nothing will happen since if you look at the equation the reactant and product are equal and no new product is formed
