Find mass of water added and final pressure in vessel
A vessel whose volume is 0.5 m^3 initially contains dry air at 0.2 MPa and 20°C. Water is added to the vessel until the air is saturated at 20°C. Determine the (a) mass of water added, in kg. (b) final pressure in the vessel, in bar.
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Determine the humidity ratio of the entering air mixture. The rate of heat transfer to the moist air passing through the heating section in kJ per kg of mixture.
Imagine you are planning a pizza party for the little league team and need to feed 12 people: 8 children and 4 adults. Develop and explain a mathematical formula you could use to determine cost and estimate how many pizzas should be ordered.
Explain why the sum of x-xbar (mean)=0. Explain how this is related to the property of the mean that states that the mean is the balance point of its distribution.
A typical simplest-ratio formula for anthracite coal isC52H16O(s) .The standard enthalpy of formation of anthracite can be estimated at -396.4kJ/mol.
Water is added to the vessel until the air is saturated at 20°C. Determine the (a) mass of water added, in kg. (b) final pressure in the vessel, in bar.
When at rest, a proton experiences a net electromagnetic force that has a magnitude of 7.2 x 10-14 N and points in the positive x-direction. When the same proton later moves with a speed of 2.0 x 106m/s in the positive y-direction, the net electrom
Often, the work done is expressed in nutritional Calories rather than in joules. Express the work done in part (a) in terms of nutritional Calories, noting that 1 joule = 2.389 x 10-4 nutritional Calories.
Calculate the following by hand: a) Draw the process on P-v and T-s diagrams b) What are the maximum and minimum temperatures of the cycle in °R?
A well-insulated heat exchanger is used to heat water (cp = 4.18 KJ/kg*K) from 300 K to 90°C with a mass flow rate of 3 kg/s. Determine the exit temperature of the oil, and the entropy generation of the heat exchanger.
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