Find entropy change of reservoir and the net entropy change
A Carnot engine delivers 100 kW of power by operating between temperature reservoirs at 100degree C and 1000 degree C. Calculate the entropy change of each reservoir and the net entropy change of the two reservoirs after 20 min of operation.
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Determine assuming the ideal gas model the pressure at the final state, in bar. the work and heat transfer, each in kJ. the entropy change, in kJ/K.
Suppose you have a sample of 3.46 moles of a certain type of molecule and the total mass is 87.9 g. What is the mass of a single molecule?
A constant pressure process results in a work output of 10 kJ. Find the change of entropy of the Nitrogen using the method of standard entropy (variable specific heats).
1) Suppose the gas inside a particular balloon has an absolute pressure of 3.10×105 Pa and occupies a volume of 5.97×10-3 m3 at a temperature of 10.5°C. How many moles of gas are inside the balloon? (do not enter units) 2) How many mo
Calculate the entropy change of each reservoir and the net entropy change of the two reservoirs after 20 min of operation.
What is the work done by the surroundings on the balloon? (Hint: Which way does the force of the surroundings act on the balloon? How does the force of the surroundings on the balloon compare to the force of the balloon on the surroundings?)
If a negatively charged particle enters a region of uniform magnetic field which is perpendicular to the particle's velocity, will the KE of the particle increase, decrease, orstay the same. Explain your answer. (Neglect gravity.)
If the weight of a loaded truck is described by a normal distribution with a mean of 13.2 tons and a standard deviation of 2.7, what is the probability that a truck chosen at random weights 17 tons or more?
Explain how the earth's geomagnetic field is created? Hint: be sure to include thedirection of the earth's current.
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