What is the change in internal energy of the system
A system receives 93 J of electrical work, performs 227 J of pressure-volume work and releases 155J of heat.What is the change in Internal energy of the system?
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Find ?Erxn for the combustion of biphenyl in kJ/mol biphenyl. The heat capacity of the bomb calorimeter, determined in a separate experiment, is 5.86 kJ/°C.
To what temperature would a constrained rod of aluminium with a diameter of 50 mm need to be heated if it is expected to exert a force of 200 kN? Take the initial temperature to be 20 °C and the Young’s modulus as 70 GPa.
Search instead for a coffe contains 100 mL of H2O. intial temperature of calorimeter is temperature 23C.if 8.20g of cacl2 is added to calorimeter. what will be the final temperature of the solution in the calorimeter. the change in heat solution o
Explain how the relative strengths of solute-solute interactions, solvent-solvent interactions, and solvent-solute interactions affect solution formation.
A heat exchanger is to be designed to condense 1100 kg/hr of steam ay 150 kPa. For this purpose, cooling water at 50 degrees celsius is available in sufficient quantity to accomplish the cooling.
How many pounds would 20.4 gallons of this fuel (a typical full tank) weigh? 1 gallon = 3785 cm3 = 4 quart; 1 pound = 453.6 g.
The volume of a gas is 5.80 L, measured at 1.00 atm. What is the pressure of the gas in mmHg if the volume is changed to 9.65 L? (The temperature remains constant.)
When 0.2250 g Mg was heated with 0.5331 g N2gas, all the Mg was consumed forming 0.3114 g Mg3N2.What mass of N2 is left over.
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Which of the following best describes the rationale of those public officials who are promoting the policy referenced in the title of the Texas Tribune article?
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