Question

In: Other

1. One kilogram of liquid water at 75°C is heated in a frictionless piston at a...

1. One kilogram of liquid water at 75°C is heated in a frictionless piston at a constant pressure of 5 bar. A total of 2750.7 kJ of heat is added. For each answer, just put the number in the blank without units, and round to the nearest whole number (no decimals). And remember that "water" can mean liquid or vapor. a) What is the final temperature of the water in °C b) What is the final volume of the water in liters c) How much work was done in kJ d) What is the total change in internal energy (∆U) of the water in kJ.

Solutions

Expert Solution


Related Solutions

One kilogram of boiling water is vaporized to steam at 100 kPa in a frictionless piston-and-cylinder...
One kilogram of boiling water is vaporized to steam at 100 kPa in a frictionless piston-and-cylinder device. Using the Steam Tables, answer the following: Is the heat needed to vaporize the water to steam equal to the change in enthalpy? Or TDS? To calculate the work done by the steam, is the first law of thermodynamics equation or the general equation for work applicable? Is the entropy generation equal to the change in entropy of the water? Does the heat...
One kilogram of water is contained in a piston-cylinder device at 100 degC. The piston rests...
One kilogram of water is contained in a piston-cylinder device at 100 degC. The piston rests on lower stops such that the volume occupied by the water is 0.835 m3. The cylinder is fitted with an upper set of stops. When the piston rests against the upper stops, the volume enclosed by the piston-cylinder device is 0.841 m3. A pressure of 200 kPa is required to support the piston. Heat is added to the water until the water exists as...
21. If a 2.50 mol sample of water is heated from -50 °C to 75 °C...
21. If a 2.50 mol sample of water is heated from -50 °C to 75 °C at a constant pressure of 1 atm, what is the change in enthalpy?
One kilogram of water in a piston-cylinder assembly undergoes the two internally reversible processes in series....
One kilogram of water in a piston-cylinder assembly undergoes the two internally reversible processes in series. P1 = 0.1 MPa, T1 = 100C, s1 = s2​ = 7.3164 kJ/kg*K​, P2 = 0.5 MPa, T2 = T3, P3 = 1.5 MPa, and u1 = 2506.7 kJ/kg. Find T2. Legibly show and explain all work, units, and formulas.
Calculate ΔS if 2.10 mol of liquid water is heated from 0.00 ∘C to 13.5 ∘C...
Calculate ΔS if 2.10 mol of liquid water is heated from 0.00 ∘C to 13.5 ∘C under constant pressure if CP,m=75.3J⋅K−1⋅mol−1. The answer the the problem above is 7.62 J/K The melting point of water at the pressure of interest is 0.00 ∘C, and the enthalpy of fusion is 6.010 kJ⋅mol−1. The boiling point is 100. ∘C, and the enthalpy of vaporization is 40.65 kJ⋅mol−1. Calculate ΔS for the transformation of the same amount of water H2O(s,0.00∘C) →H2O(g,100.∘C) Can you...
Liquid water at 15 ℃ is heated by mixing it with saturated steam at the same...
Liquid water at 15 ℃ is heated by mixing it with saturated steam at the same pressure. Liquid water enters a chamber at a rate of 4.3 kg/s and saturated steam enters at a rate of 0.17 kg/s. The mixture leaves the mixing chamber as a saturated liquid at 40℃. If the surroundings are at 15℃, determine (a) the temperature of the saturated steam entering the chamber, (b) the exergy destruction during this mixing process, and (c) the second-law efficiency...
A piston?cylinder device initially contains 1.5?kg saturated liquid water at 120°C. Now heat is transferred to...
A piston?cylinder device initially contains 1.5?kg saturated liquid water at 120°C. Now heat is transferred to the water until the volume increases 100 times. Determine: a. Initial Volume of the water. b. Final volume of water. c. Final state of water. d. Amount of heat added to the water e. Draw the T?s diagram
In a 4.50L sealed, evacuated flask, Robert injected 2.25g of liquid water and then heated it...
In a 4.50L sealed, evacuated flask, Robert injected 2.25g of liquid water and then heated it up to 50.0°C, while measuring the p inside. When the system stabilised, p total = 196.0mmHg. What percentage of water remains as liquid in the flask?
A 1.0 gram sample of an unknown metal was heated to 75 C, and then placed...
A 1.0 gram sample of an unknown metal was heated to 75 C, and then placed in a calorimeter filled with 100mL of water that had an initial temperature of 26 C. Once the system was allowed to reach thermal equilibrium the temperature of the water was 31 C. what is the specific heat capacity of the metal?
An insulated cylinder is initially divided into halves by a frictionless, thermally conducting piston. On one...
An insulated cylinder is initially divided into halves by a frictionless, thermally conducting piston. On one side of the piston is 1 m3 of a gas at 300 K, 2 bar. On the other side is 1 m3 of the same gas at 300 K, 1 bar.The piston is released and equilibrium is attained, with the piston experiencing no change of state. Employing the ideal gas model for the gas, determine (a) the final temperature, in K. (b) the final...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT