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Heat in the amount of 100 kJ is transferred directly from a hot reservoir at 1200 K to a reservoir at 600 K. Calculate the entropy change of the two reservoirs and determine if the increase of entropy principle is satisfied.
it has been shown that the cop for a carnot refrigerator. is greater than the cop for a real refrigerator . show the
a specimen of magnesium having a rectangular cross section of dimensions 3.2 mm 19.1 mm 1818 in. 3434in. is deformed in
a balloon filled with helium gas is to be used to lift a military vehicle that weighs 2570 pounds. as learned in class
a 1 m3 rocket-propellant chamber is tilled with combustion gases at 3000 k and 7 mpa at the instant combustion ceases.
Consider a system consisting of liquid water initially at T1 = 318 K, p1 = 3.5 bar undergoing a process to a final state at T2 = 353 K, p2 = 1.5 bar. Use appropriate equation with the data from the table to evaluate change in specific entropy.
A stream of humid air containing 1.00 mole % H2O(v) and the balance dry air is to be humidified to a water content of 10.0 mole % H2O. For this purpose, liquid water is fed through a flow meter and evaporated into the air stream.
1. a commercial refrigerator keeps food fresh at -12 ordmc. it is estimated that the refrigerator removes 3300 kjhr
a race car c is being tracked via telemetry. the on-board acclerometer records and acceleration level of -.7get.5gen.
Determine the radius of the crank R and the speed n of a slider crank mechanism, used in a shaker table. It is required that the average speed of the table is 5 m/s, and the maximum absolute acceleration is 3000m/s^2. Assume ratio R/L=0.2
water at a temperature of 75 oc has an internal energy of 1800 kjkg. what is its state? water with a specific volume of
a tie bars is to be made in two parts to facilitate adjustment in length during assembly. sketch the arrangements. draw
gear a accelerates clockwise from rest to 100 rpm in 2 seconds. determine the angular acceleration of gear b and the
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