How much heat was transferred and in which direction
If the internal energy of a thermodynamic system is increased by 300. J while 75 J of expansion work is done, how much heat was transferred and in which direction, to or from the system?
Expected delivery within 24 Hours
A runner generates 418 kJ of energy per kilometerfrom the cellular oxidation of food. The runner's body mustdissipate this heat or the body will overheat. Suppose that sweatevaporation is the only important cooling mechanism.
Calculate the amount of heat liberated (in kJ) from 295 g of mercury when it cools from 82.0°C to 12.0°C. The specific heat of Hg is 0.139 J/ gºC.
We are given an environmental engineer takes an air sample that hasbeen polluted with Sulfur Dioxide. The sample size is 500 mLat 700 torr and 38 Degree C.
How do you find the values of the matrix? For instance, Iwant to find the values for the HO radical and then get theeigenvalues to find the frequency.
Adipic acid and citric acid have very similar melting points. Given two unknown samples, one being citric acid and the other adipicacid, how could you determine which was without using spectroscopy?
The tank is filled with O2 to a pressure of 175 atm at 25°C. How many moles of O2 does the tank hold, and what volume would the gas occupy at 1.00 atm and 25°C?
25 ml of 0.10 M acetic acid is titrated with 0.10 M NaOH. What is the pH at the equivalence point? Ka for acetic acid = 1.8× 10-5
Lactose is a sugar most commonly found in milk and is made up of carbon, hydrogen and oxygen. After analyzing a sample of it there was found to be 42.1 % of carbon, 6.46% of hydrogen and 51.4% of oxygen by mass.
The work input to the control volume is 240 kJ per kg of air flowing.determine the heat transfer rate, in kW. Evaluate the properties of air using variable specific heats.
She particularly enjoys pickling and decides to pickle olivesover a leisurely weekend. According to the recipe, she needs to addthree teaspoons of salt to one cup of diced olives.
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!