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A 2-L liquid at 20°C is mixed with 3 L of another liquid at the same temperature and pressure in an adiabatic container, forming a homogeneous liquid solution. Someone claims that the temperature of the mixture rose to 22°C after mixing. Another person refutes the claim, saying that this would be a violation of the first law of thermodynamics. Who do you think is right?
The City of Leadville (dimensions 120 * 120 km ) is characterized by an average daily emission rate of 4700 kg/d of particulate lead into the atmosphere from auto exhaust and industrial processes.
What is the reaction that occurs with hexanal and propanol (give both the hemiacetal and acetal products)?
A 1 L beaker contains a material that decays at a first order rate of 0.25/day. How long will it take for the concentration in the container to be reduced to 10 % of its originalvalue
A composite beam is made by attaching the timber and steel portions shown with bolts of 14-mm diameter spaced logitudinally every 200 mm. The modulous of elasticity is 10 GPa for the wood and 180 GPa for the steel
Design a circular radial-flow clarifier for a town with a projected population of 45,000. Assume that the wastewater flow is 400 L/capita-day. Size the system for a 2-hr
A crane is used to lift a concrete pipe weighing 10kN into place. For precision positioning, the worker at C can apply up a 800N force to cable AC. Determine the largest distance d the concrete pipe may be moved.
Consider high pressure steam at 400 degrees C and v =0.01567 m^3/kg. Obtain estimates of the pressure using
Assuming D/D/1 queuing, what will be the total vehicle delay?
A pneumatic-tired tractor with a 354 - hp engine has a maximum speed of 3.6 mph in 1st gear. Determine the max. rimpull of the tractor in each gear if the engine effieicency is 91%. (1st gear = 3.8 mph, 2nd gear = 6.5 mph, 3rd Gear = 11.5 mph, 4th Ge..
A refrigerator operating on the vapor-compression refrigeration cycle using refrigerant-134a as the refrigerant is considered. The temperature of the cooled space and the ambient air are at 108F and 808F, respectively. R-134a enters the compressor at..
The bottom is a 6 in slab of rough concrete. If the water is flowing at a uniform depth of 6 ft, do you think the gravel will be scoured by the flowing water
Create a MATLAB program and flowchart which will allow the user to input an unknown number of temperatures, each of which might be a temperature in Celsius, Fahrenheit, Kelvin, or Rankine, and will convert the user input temperature to each of the..
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