Recent questions in Thermodynamics

What is mean by pure substance and what are its properties?
couple of pure substance examples, definition and properties
What is upper limit of temperature?
0 Kelvin is considered the lower limit of temperature. what about the upper?
How can the fatigue damage on high-pressure blades be corrected?
I have heard a lot about this website so I thought I should check this out.
How can the deposits be removed?
I just want to kill my teacher who asked me this question.
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What is the difference between P11 and P12 Pipes?
I had a bet with my girlfriend, she said that i could not answer this question, I know I couldn't but you guys can :p
State difference between AnitiFriction Bearing and Journal Bearing?
Anyone who ever heard his teacher explaining this question?
What is the difference between Technology and Engineering?
I just want to pull off my hair right now. Please help me with this?
How to Measure Temperature in Wet Bulb Thermometer?
Anyone with the constructive ideas who can answer this?
What are the Advantages and Disadvantages of using LPG in Car?
This website has always proven trustworthy as far as my experience is concernededed, so fellows here is another one for you.
What is the difference between Speed and Economic Speed?
I have nutty proffessor in my school who asks such questions. Answer please!
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