Heat flows into a gas in a piston and work is performed on the gas by its surroundings. The amount of work done is equal to the 
heat added. In this situation,
       
      
                
     
    
    
    
    
    1 answer:
            
              
              
                
                
Answer:
 The Internal energy of the gas did not change 
Explanation:
In this situation the Internal energy of the gas did not change and this is because according the the first law of thermodynamics 
Δ U = Q - W  ------ ( 1 ) 
Δ U  = change in internal energy 
Q = heat added 
W = work done 
since Q = W.  the value of ΔU  will be = zero   i.e. No change 
 
                                
             
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Answer:
yes 20 characters or more 
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The correct answer is plasma
        
                    
             
        
        
        
Answer:2.5 m/s
Explanation:
 
        
             
        
        
        
250 kg*m/s
Momentum is found by multiplying mass by velocity
25*10=250
        
             
        
        
        
dry ice is one example of this.