Thermodynamics/Expert Profile

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Recent Answers from Richard J. Raridon

2009-10-14 thermodynamic arrow of time:

Entropy is a measure of disorder. Although a few atoms might become more organized, indicating a decrease in entropy, somewhere else the increase in entropy more than offsets that. In other words, the

2009-09-07 please help:

F = ma = T-0.85mgcos(21) -mgsin(21) T = 271(0.8) +0.85(271)(9.8)cos(21) +271(9.8)sin(21) = 3276N If you drew the force diagram you would see that you have two forces down the ramp, the frictional

2009-09-03 thermodynamics:

Basically, heat capacity and specific heat are the same thing, the amount of heat required to raise the temperature of a substance 1 degree Celcius. The unit is J/g/degree C, or KJ/Kg/degree C. The molar

2009-08-17 Preheating Steel:

I assume you're talking degrees C. So you're heating from 25C to 350C instead of 25C to 225C. That requires about 60% more heat input, not counting the fact that you'll lose more heat to the surroundings

2009-06-23 water temperature:

Generally, underground temperatures stay about 50F or 10C year around. Obviously, in the summer water coming from wells is cool compared to summer temperatures and in the winter water would be warmer