Molecular Physics | Thermodynamics Answers

half a pound of gas undergoes a reversible non flow process at with the pressure remaining constant at 50 psia while the volume increases from 4ft^3 to 8ft^3. find the work done, BTU/lb

At standard atmospheric pressure, saturated steam has a specific volume of 26.80 ft3 /lb. If the enthalpy of that same vapor is 1150.5 Btu/lb, calculate the internal energy of the steam in Btu/lb.

two kilograms of gas undergo a reversible non-flow process at 350 kPa while the volume increases from 0.4734 m^3. find the work done, kj/kg

During a non-flow process 120 Btu are removed as heat from each pound of working substance while the internal energy decreases 85.5 Btu /lb. Calculate the work involved in the process in ft·lbf/lb

during a reversible process with a certain working substance, the entropy remains constant while the temperature increases from 250°F to 450°F. Find the heat transferred

one pound of water in changing to steam receives 970.3 BTU at 212°F. Determine the change in specific entropy for the process, BTU/lb-°R

fifty btu are added to one pound of air during a constant pressure process starting at a temperature of 100°F. Calculate the final temperature of the air, degrees F, for a constant pressure specific heat of 0.24 BTU/lb-°F. The calculate the final temperature of the air, starting at 100°F, for the same quantity of heat added during a constant volume process for which the average specific heat is 0.171 BTU/lb-°F

A fuel oil heater receives 23200 lb of oil per hour at 80°F and discharges it at 160°F. The specific heat of the oil is 0.48 BTU/lb-°F. Find the rate of heat transfer to the oil, BTU/hr.

A jet slows uniformly from 153 km/h to 0 km/h over 42 m. What is the jet's accelertion?

A unit mass of carbon dioxide gas is contained in a cylinder behind a piston and is heated from p1 = 552 kPa and V1 = 0.0184 m3
to p2 = 138 kPa. It expands acc
ording to a law pV1.3 = constant and the heat supplied to the gas during
the expansion process is 10.125 kJ. Calculate, per unit of mass:
(a) the work done during the of expansion process.
(b) the change in the internal energy of carbon dioxide.