# How much work does it take to compress 30 mol of an

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How much work does it take to compress 30 mol of an ideal gas at a fixed temperature of 15degree Celsiusto half its volume?A) 100 JB) 1000 JC) 5 kJD) 10 kJE) 50 kJ
Assume an ideal mono-atomic gas. Pick a point in the P-V diagram. Consider the adiabat andthe isotherm that go through this point. What is the ratio of slopes (adiabat/isotherm) in thispoint?
An ice cube is floating in a glass of water. Will the water level rise, fall, or remain the samewhen the ice cube melts?
Why does it require effort to keep order in your dorm room?
"The entropy of the universe can only increase."Is this an absolute statement or simply anexcellent approximation?A) It is the truth and nothing but the truth.B) It is absolutely true because of the large number of microscopic particles that make upmacroscopic particles.C) It is only an approximation. However, a very good one because of the vast number ofmicroscopic particles that make up macroscopic particles.One kilogram of ice atzero degree Celsius is melted and converted to water at zero degree
Celsius. Compute its change in entropy, assuming the melting is done reversibly. The heat offusion of water is Lf=334 kJ/kg.
An engine with a mechanical power output of 8.5kW extracts heat from a source at 420K andrejects it to a 2000kg block of ice at it's melting point. How long can the engine operate at itsefficiency? (Lf=334kJ/kg)
A fully loaded Volvo station wagon has a mass of 1950kg. If each of it's 4 tires is inflated to agauge pressure of 230kPa, what is the total tire area in cintact with the road?
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Term
Winter
Professor
wurthmeir
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