Which one of the following statements is INCORRECT? Increasing the thermal energy of a gas increases the motion of its atoms. Energy is the capacity to do work. Kinetic energy is the energy associated with motion. Exothermic processes transfer heat from the surrounding into the system. Energy is neither created nor destroyed in chemical reactions.
![A firearm can be modeled as a kind of heat engine, where the projectile acts as a piston that separates from the rest of the system during expansion. Consider a gun with a 1.60 kg barrel made of iron [specific heat = 448 J/(kg⋅∘C)]. The gun fires a 3.40 g bullet that exits the barrel with a speed of 340 m/s. When the propellant is ignited, 1.10% of the energy released goes into propelling the bullet (this is the thermal efficiency of the "engine"). The other 98.9% can be approximated as being entirely absorbed by the barrel, which increases in temperature uniformly for a short time before this energy is dissipated into the surroundings. What is this temperature increase (in ∘C)? (Round your answer to at least one decimal place.) ∘C](https://www.doubtrix.com/uploads/editor/3573972417MJHpmUZauf.png)
