Answer: 
Propels in the opposite direction
Explanation:
 
        
             
        
        
        
The correct answer to go in the blank would be A) The particles are moving faster.
        
                    
             
        
        
        
The body shivers to produce energy and it uses the energy to keep it warm. The body would stop shivering when it has produced enough energy to keep it warm and the atmosphere around it has got warmer
        
                    
             
        
        
        
The molar latent enthalpy of boiling of iron at 3330 K is  ΔH = 342  10^3 J.
 10^3 J.
<u>Explanation:</u>
Molar enthalpy of fusion is the amount of energy needed to change one mole of a substance from the solid phase to the liquid phase at constant temperature and pressure.
                       d ln p = (ΔH / RT^2) dt
                    (1/p) dp = (ΔH / RT^2) dt
                     dp / dt = p (ΔH / RT^2) = 3.72  10^-3
 10^-3
                   (p) (ΔH) / (8.31) (3330)^2 = 3.72  10^-3
 10^-3
                           ΔH = 342  10^3 J.
 10^3 J.