An ideal gas is enclosed in a cylinder with a movable piston on top of it. the piston has a mass of 8,000 g and an area of 5.00 cm^2 and is free to slide up and down, keeping the pressure of the gas constant. how much work is done on the gas as the temperature of 0.205 mol of the gas is raised from 10.0°c to 250°c?

What type of nuclear decay causes the atomic number of an element to increase by 1?

If forces acting on an object are unbalanced. true or false

4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)