Air can be assumed to be an ideal gas with a

Assignment Help Mechanical Engineering

Reference no: EM13623902

A well-insulated tank contains 1 mole of air at 2 MPa and 673 K. It is connected via a closed valve to an insulated piston/cylinder device that is initially empty. The piston may be assumed to be frictionless. The volumes of the piping and valve are negligible. The weight of the piston and atmospheric pressure are such that the total downward force can be balanced with gas pressure in the cylinder of 0.7 MPa. The valve between the tank and piston/cylinder is cracked open until the pressure is uniform throughout. The temperature in the tank is found to be 499.6 K. Air can be assumed to be an ideal gas with a temperature-independent heat capacity CP = 29.3 J/mol-K.

What is the number of moles left in the tank at the end of the process?

Write and simplify the energy balance for the process. Determine the final temperature of the piston/cylinder gas.

Reference no: EM13623902

Questions Cloud

1 determine for each case whether the substance is a : 1 determine for each case whether the substance is a compressed liquid superheated vapor or saturated mixture using the

The pump draws 20 kw of power and operates at 50 efficiency : consider a pump that moves q0.1 m3s of oil s.g. 0.8 from an open reservoir through a 10 cm diameter pipe. the pump

Consider a cross flow of water saturated water that comes : consider a cross flow of water saturated water that comes at 20c with a velocity of 5 ms on the surface of a

A circular coil of wire consisting of 100 turns each of : a circular coil of wire consisting of 100 turns each of radius 8.0 cm carries a current of 0.40 a. what is the

Air can be assumed to be an ideal gas with a : a well-insulated tank contains 1 mole of air at 2 mpa and 673 k. it is connected via a closed valve to an insulated

The balance point of the cell in open circuit is 763 cm : potentiometer used for the determination of internal resistance of a 1.5 v cell. the balance point of the cell in open

A jet-propelled object has a straight-line motion according : a jet-propelled object has a straight-line motion according to the equation x 2 t2 - 2t - 2 where x is in meters and t

An automobile tire with a volume of 06m3 is inflated to a : an automobile tire with a volume of 0.6m3 is inflated to a gage pressure of 200 kpa. calculate the mass of air in the

Determine the value of x what might you do if you failed to : a potentiometer circuit for comparison of two resistances. the balance point with a standard resistor r 10.0nbspomega

User Account

All Pages