Explanation:
Heat is a form of thermal energy. 
Heat is the sum of all the energy of the molecular motion in an object. 
Temperature measures the average heat possessed by each molecule in a given substance. 
  Molecules at a higher temperature possess more kinetic energy and they will move faster. This kinetic energy form is the heat variant of thermal energy. 
Temperature is the measure of this heat energy of molecules. 
 
        
             
        
        
        
If you have a book, read it!! I promise you, it tells you this answer!
        
             
        
        
        
It is two or more objects and different things that can be removed from each other.
        
             
        
        
        
Answer:
2.77 mol N
Explanation:
M(N2O) = 2*14 + 16 = 44 g/mol
61.0 g * 1 mol/44g = (61/44) mol N2O
                        N2O ---- 2N
                     1 mol         2 mol
             (61/44) mol        x mol
x = (61/44)*2/1 = 2.77 mol N
 
        
             
        
        
        
Explanation:
At each reflecting surface (benzene and glass) there will be 180 degree phase change.
Now, for constructive interference the optical path in benzene is 
.
Formula to calculate thickness of a benzene thin film is as follows.
      Optical path length through benzene (
) = 
Hence, substituting the given values into the above formula as follows.
     Optical path length through benzene = 
                    d = 
                        = 
  
                        = 
   (as 1 nm = 
                        = 204.9 m           
Thus, we can conclude that minimum thickness of benzene is 204.9 m.