When water is boiled under a pressure of 2.00 atm, the heat of vaporization is 2.20×10^6 j/kg and the boiling point is 120 c. at this pressure, 1.00 kg of water has a volume of 1.00×10^−3 m3, and 1.00 kg of steam has a volume of 0.824 m^3.(a)compute the work done when 1.00kg of steam is formed at this temperature(b)compute the increase in internal energy of the water.

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

The ability to make things happen is also called a. heat b. force c. matter d. energy

The second largest public utility in the nation is the sole provider of electricity in 32 counties of southern florida. to meet the monthly demand for electricity in these counties, which is given by the inverse demand function p = 1,200 – 4q, the utility company has set up two electric generating facilities: q1 kilowatts are produced at facility 1, and q2 kilowatts are produced at facility 2 (so q = q1 + q2). the costs of producing electricity at each facility are given by c1(q1) = 8,000 + 6q12 and c2(q2) = 6,000 + 3q22, respectively. determine the profit-maximizing amounts of electricity to produce at the two facilities, the optimal price, and the utility company’s profit