Determine the energy released
Determine the energy released when the 12.5 g of steam at 120Celsius are converted into the ice at minus 25 Celsius. Demonstrate the formula.
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At 21.2 Celsius an 82.5 g sample of a metal is heated to 98.5 Celsius and is added to 125.0 g sample of water. The final temperature of the mixture is 27.5 Celsius after thermal equilibrium is established.
Forty-nine mill curies (49 x 103 micro curies) of a long half-life radionuclide in the soluble solution is to be discharged into the sanitary sewer system through a University.
Determine the partial pressure of the CO2 if a gaseous mixture containing the 2.5 mol of N2 and 7.6 mol of CO2.The mixture has a total pressure of 7.5atm.
Determine the average torque applied on the wheel given that it is a disk of radius 0.79 m and mass 6.4 kg.
At a point 5 meters from the scene of the accident comprising a radiation source, you detect an exposure rate of 87 mR/hr. You are assigned to establish an exclusion zone (2mR/hr.) around the accident scene so that the viewing public will be prote
Determine the molarity of the acid solution if 26.25 mL of a standard of a standard 0.1850 M NaOH solution is needed to neutralize the 25.00 mL ofH2SO4
Determine pH after adding the 0.010 M HCl to 1000 mL of a buffer solution. Containing the 0.10M acetic acid ( HC2H3O2) and 0.10M sodium acetate (Na C2H3O2). Ka=1.8 x10^-5
Nineteen (19) 137Cs radiation therapy sealed sources totaling 0.604 Ci were stolen from Moses Cone Hospital in Greensboro, NC and never recovered (true story). 137Cs emits a 0.667 MeV gamma ray. Determine the dose rate at 4 feet from the sources?
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