Heat released by complete combustion
If a bottle of nail polish remover contains 172 of acetone,how much heat would be released by its complete combustion? The density of acetone is 0.788
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At constant external pressure (1.2atm), the temperature of 3.25 mol of ideal gas increased from 250K to 305K. Calculate the internal energy change ΔE.
Steam flows steadily through an adiabatic turbine.The inlet conditions of the steam are 6 mPa,400 degree celcius and 80 m/s and the exit conditions are 40 kPa, 92 percent quality and 50 m/s.
We have two light bulbs, A and B. Bulb A has an exponentially distributed lifetime with mean lifetime 4 days i.e lA = 14.Bulb B has an exponentially distributed lifetime with mean lifetime 6 days i.e lB = 1 6 . We select one of the two bulbs at ra
A specific brand of gourmet chocolate candy contains 7.00 g of dietary fat in each 22.7-g piece. How many kilograms of dietary fat are in a box containing 3.00 lb of candy?
An aqueous solution is 22.0% by mass silver nitrate, AgNO3, and has a density of 1.22 g/mL. What is the molarity of silver nitrate in the solution?
How many moles of chromium metal are needed to produce 855 g of chromium(III) phosphate? The reaction of 206 g chromium will release how many moles of hydrogen gas?
Suppose that you have a basin of 35C warm water that you use to run a heat engine that cools its substance with air at 20C. What is the maximum efficiency of the heat engine?
The input signal vi(t) is a step function which equals zero for t <0 and equals 3.0 Volts for t > 0. Determine the initial value of vo(t) at t = 0+ and the final value of vo(t) when R = 10 kOhm.
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