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Oxygen at 450K is heated to 850K. Assume oxygen as an ideal gas. Determine the change in internal energy and enthalpy of oxygen per unit mass, using:
A) Data for line over u and line over h from the oxygen table (Method 1)
B) Average specific heat values (Method 2)
a gate is 0.5 m wide and 0.6 m tall and is hinged at the bottom. on one side the gate holds back a 0.5 m deep body of
a 4-ft concrete post is reinforced with four steel bars each with a 34 in. diameter. knowing that e of steel 29x106 psi
Two resistors, R 1 = 100.0 ± 0.2 ? and R2 = 50.0 ± 0.1 ?, are connected (a) in series and (b) in parallel. Calculate the uncertainty in the resistance of the resultant circuits. What is the maximum possible error in each case?
consider a regenerative rankine cycle with a 600c and 4-mpa throttle a 5-kpa condenser and an open feedwater heater at
A rigid tank is heated for 9 minutes with a 800W electrical heater. During this time 70kJ of energy is lost due to heat transfer to the environment. Find the temperature of the refrigerant at the end of the heating process.
A cylindrical drill with radius r1 is used to bore vertically a hole through the centre of a sphere of radius r2.
consider a non-ideal vapor-compression cycle where refrigerant 134a flows at a rate of 0.05 kgs. the refrigerant enters
What is the total force reaction (magnitude) at pin joint O when the square plate is released from rest? Assume the plate has a uniform thickness.
an important radionuclide produced in water-cooled nuclear reactors is 16n which has a half-life of 7.13 s and emits
Two simple pendulums are related as follows. Pendulum A has a length LA and a bob of mass mA; pendulum B has a length LB and a bob of mass If the period of A is twice that of B, What is the relationship between LA and LB?
Use a suitable method to predict the racS,T variation along these plates when a= e= 0.1, 0.5, and 0.8 and emissions and reflections are diffuse.
Estimate the mass of the gas in the tank in kg assuming the gas behaves as an ideal gas. If the gas warms up to 35 deg C as it sits in the sun all day, what would the pressure rise to?
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