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HNQ
9:56 AM
5
Q: Do colors differ in terms of speed?

brilliantHere is a very simple question about light. As far as I remember from the school program, each color is merely one of the frequencies of light. I also remember that each color's wave length is different. On the other hand, when talking about the speed of light, I've always heard only one value. W...

 
 
12 hours later…
HNQ
9:40 PM
2
Q: Is free expansion adiabatic

Ramesh AgarwalIn free expansion the system is thermally isolated so $\Delta Q = 0$ throughout the process. This implies that process is adiabatic and follows its equation: $$P_1V_1^\gamma = P_2 V_2^\gamma$$ But since inital and final temperature is same $$P_1 V_1 = P_2 V_2$$ Both equations can only hold w...

 

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