Two identical cylinders with a movable piston contain 0.4 mol of helium gas at a temperature of 300 k. the temperature of the gas in the first cylinder is increased to 506 k at constant volume by doing work w1 and transferring energy q1 by heat. the temperature of the gas in the second cylinder is increased to 506 k at constant pressure by doing work w2 while transferring energy q2 by heat.

find δeint, 1, q1, and wi for the process at constant volume.

Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.

Determine (a) the maximum thermal efficiency of reversible power cycles operating between a hot reservoir at 1000°c and a cold reservoir at 200°c and (b) the maximum cops for reversible refrigeration and heat pump cycies, respectively, between 28°c and 14°c.