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Consider a 240-V supply feeding a resistive load of 10 kW through wires having a total resistance of R = 0.02 Ω. For the same load, let a 120-V supply be used with a total wire resistance of R/2 = 0.01 Ω. Compute the I2 R loss in the lines for both cases and compare.
Write reactions to show how these strong electrolytes break apart when they dissolve in water.
Methanol can be manufactured by the gas phase reaction CO(g) + 2H2(g)?CH3OH(g)at 400K and 1.013 bar.The following data are available;?H298= -90.71 kJ/mol?G298= -24.33 kJ/mol.
A scheme for concurrently heating separate water and air streams involves passing them through and over an array of tubes, respectively, while the tube wall is heated electrically. To enhance gas-side heat transfer, annular fins of rectangular pro..
Determine the kVA rating of the synchronous motor.
If the gases enter the reactor at 348.15 K (75"C), if conversion is 80%, if no side reactions occur, and if the reactor operates adiabatically, what is the temperature of the gases leaving the reactor? Assume ideal gases.
The MAPK cascade is an important cellular signal transduction pathway. Which diseases are implicated in changes to the MAPK cascade?
What are the impacts that the pharmaceutical company that makes the medications in question will experience? How will that affect the pharmaceutical company production decisions? What about its decisions to conduct further research into new drugs?
Grams of tin and lead, An alloy is 7 parts tin and 3 parts lead. How many grams of each are in 40g of the alloy? Let x= the number of grams of tin in the 40g of the alloy.
Two moles of benzene are mixed with 3 moles of acetonitrile under constant temperature and pressure at 45 °C and 33 kPa. What is the phase of the mixture (vapor, liquid, or mixed)?
Consider the operation of a dc shunt motor that is affected by the following changes in its operating conditions. Explain the corresponding approximate changes in the armature current and speed of the machine for each change in operating condition..
Determine the fraction of load for which the efficiency is a maximum, and calculate the corresponding efficiencies for the power factors of unity, 0.8, and 0.6.
Assuming that no lead was originally present, that all the 206Pb formed over the years has remained in the rock, and that the number of nuclides in intermediate stages of decay between 238U and 206Pb is negligible, calculate the age of the rock. (..
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