Search & Filtering
Create a staff/worker information system using C Struct where you’ll be able to –
a ) Insert staff/worker details with id, name and monthlySalary
b ) Display staff/worker details (searched by id)
c ) Update monthlySalary of a staff/worker
A 150 g of ammonium chloride solution is 15.00 % by mass with a density of 1.037 g/mL. Calculate molarity and molality of a solution
An air filled with 75 microfarad has a voltage of 12V. An insulator with dielectric constant of 1.00095 is inserted between the metal plates. Calculate the capacitance. What is the new voltage across the capacitor? Calculate the original charge on the capacitor. How much charge is currently on the capacitor
D. Consider the following sets:
U= {1, 2, 3, 4, 5, 6, 7, 8, }, A= {1, 2, 3, 4, 5, 7}, B= {1, 5, 6, 7}, C= {1, 2, 3, 6}
16-20. Illustrate the Venn Diagram for the sets A, B, and C.
Find the change in entropy when (a) 3.0 kg of boiling water changes to steam at 100ºC, (b) 3.0 kg of water is heated from 20ºC to 80ºC, and (c) 2.0 kg of water at 30ºC are mixed with 5.0 kg of water at 75ºC and the mixture allowed to reach equilibrium.
How many liters of 0.55 M HCl is required to neutralize 1.10 g of sodium carbonate
(Na2CO3)? (molar mass of Na2CO3 = 105.99 g/mol)
2HCl + Na2CO3 → 2NaCl + H2CO3
A perfect heat engine takes in heat at 237ºC and rejects heat at 97ºC. What is the efficiency of the engine? How much heat is rejected for every 1000 joules of work done?
If the temperature of a hot reservoir is 400K, what must the exhaust temperature be so that the efficiency of an ideal heat engine is 25%?
If all the energy of a 20-g bullet travelling at 1km/s is converted into heat, how many calories are generated?
An acid solution contains 18 kg of water and pure hydrochloric acid (HCl). Its
concentration is 0.60 mol/kg of solvent. Compute for the number of moles of solute contained in the solution
