Water is boiled at sea level in a coffeemaker equipped with an immersion-type electric heating element. The coffeemaker contains 1 L of water when full. Once boiling starts, it is observed that half of the water in the coffeemaker evaporates in 13 min. Determine the power rating of the electric heating element immersed in water. Also, determine how long it will take for this heater to raise the temperature of 1 L of cold water from 18°C to the boiling temperature.

Q: A frictionless piston-cylinder device contains 3L of saturated liquid water at a pressure of 200…

A: Given:V=3 LP=200 KPat=22 min i=7.5 AV=160 V

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Q: A water tank initially contains 140 L of water. Now, equal rates of cold and hot water enter the…

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Q: Determine the change in the volume of the cylinder of the refrigerant-134a if the specific volume…

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Q: A tank with a volume of 3.5 m³ is filled with carbon monoxide at 53°C and 170 kPa is connected…

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Q: The increase of enthalpy of a particular quantity of gas is 141.9 kJ when the pressure increases…

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Q: Question attached

A: given- Internal diameter =0.465m3 temp of methane =20°Cpressure of 137bar

Q: Water is boiled at 1 atm pressure in a coffeemaker equipped with an immersion-type electric heating…

A: Write the formula for heat gained by water to change from liquid to vapor state at the boiling…

Q: A tank with a volume of 2 m³ is filled with air at 29°C and 350 kPa is connected through a valve to…

A: To determine the volume of second tank and final equilibrium pressure

Q: A 5.2m3 tank contains nitrogen, which is evacuated from 100kPag to a pressure of 98kPag vacuum.…

A: Answer: The mass of pumped out nitrogen is 6.3274 kg.  Hence, the correct answer is option (a).

Q: Neon is compressed from 100 kPa and 20°C to 500 kPa in an isothermal compressor. Determine the…

A: Given data as per the question Initial pressure = 100 kpa Final pressure = 500 kpa Temperature =…

Q: Determine the quality of steam at 169.06 kPa when 270 kJ/kg of energy are lost from saturated steam.…

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Q: 10-kg of R-134a fill a 1.348-m3 rigid container at an initial temperature of -40 degree Celsius. The…

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Q: A 2-m3 rigid vessel contains helium initially at a gage pressure and temperature of 320 kPa and 315…

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Q: The state of liquid water is changed from 50 psia and 50°F to 2000 psia and 100°F. Determine the…

A: Given Initial pressure Pi = 50 psia Initial temperature Ti = 50o F Final pressure Pf = 2000 psia…

Q: A 1-m tank containing air at 10 °C and 350 kPa is connected through a valve to another tank…

A: Volume of the first tank is, V1=1 m3. Temperature of the air in first tank is, T1=10 °C. Pressure of…

Q: Is the energy required to heat air from 295 to 305 K the same as the energy required to heat it from…

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Q: A piston - cylinder device contains 1 kg of saturated water mixture with a quality of x = 0.23 and…

A: Given:m=1 KgP=120 KPax1=0.23From the steam Table, At P=120 KPa:Ts=377.934 Khf=439.299 KJ/Kg…

Q: What is the maximum volume that 3 kg of oxygen at 950 kPa and 373°C can be adiabatically expanded to…

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Q: An ideal gas is adiabatically expanded along path AB from a temperature T=500 K to 300 K, and then…

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Q: Steam, with a specific enthalpy of 2803 kJ/kg, is flowing through a pipe located 5 m above the…

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Q: Determine the specific volume, specific entropy and specific internal energy of steam at a pressure…

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Q: A 1-m3 tank containing air at 10°C and 350 kPa is connected through a valve to another tank…

A: Given data as per the question The volume of tank =1 m3 The temperature of air =100 c Pressure in…

Q: The radiator of a steam heating system has a volume of 20 L and is filled with superheated water…

A: Given: The volume of the system is V=20 L. The initial temperature and pressure are T1=200 ⁰C and…

Q: Carbon dioxide gas enters a throttling valve at 5 MPa and 100°C and leaves at 100 kPa. Determine the…

A: Given data P1=5 MPaP2=100 KPaT1=100°c

Q: 10 cu. m vessel initially contains 5 cu. m of liquid water and 5 cu. m of saturated water vapor at…

A: Given Data Vf=5 m3 Vg=5 m3 P=100 kPa

Q: Which of the following equations describe the enthalpy H? O H= U+ PV O H= U/V+ P O H = U - PV O N O…

A: Enthalpy is a form of energy is a sum of internal energy and product of P and V

Q: An insulated piston-cylinder device contains 3 L of saturated liquid water at a constant pressure of…

A:

Q: The decrease in internal energy of 3 lb of an ideal gas is 325 BTU when the pressure decreases from…

A: Internal Energy: The energy that is associated with the random and disordered motion of the…

Q: Consider a sealed can that is filled with refrigerant134a. The contents of the can are at the room…

A: Given: The initial temperature of the refrigerant is T=25°C. The local atmospheric pressure of the…

Q: Refrigerant flows in a evaporator with enthalpy of 259 kJ/kg and flows out the evaporator with…

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Q: A rigid vessel contains 5.0 kg of wet steam at 0.4 MPa. After the addition of 9585 kJ the steam has…

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Q: Which process requires more energy: completely vaporizing 100 kg of saturated liquid water at 1atm…

A: Saturated liquid is the liquid present at the saturated liquid lines which means that this is at…

Q: An insulated piston-cylinder device contains 8 L of saturated liquid water at a constant pressure of…

A: Given data: V=8 LP=175 kPaW=400 kJ Need to determine the voltage source.

Q: Calculate the work done when a gas expands from 350 kPa and 0.03 m3 to a final volume of 0.2 m3 for…

A: Given: The initial volume of the gas is V1=0.03 m3. The final volume of the gas is V2=0.2 m3. The…

Q: A 9-m3 tank contains nitrogen at 17°C and 600 kPa. Some nitrogen is allowed to escape until the…

A: Given, Volume of Nitrogen gas in  the tank,V=9m3 Initial Pressure of Nitrogen gas, P1=600kPa Initial…

Q: A rigid tank with a volume of 0.1 m 3 contains water at 1.6 MPa and 300 °C. The tank is heated but,…

A: Given Data→ Volume of the rigid tank (V) =0.1 m3 Initial Pressure and temperature of water in rigid…

Q: 10-kg of R-134a at 300 kPa fills a rigid container whose volume is 14 L. Determine the temperature…

A: Given data: *The mass of the refrigerant is m=10 kg. *The initial pressure of the container is…

Q: 2. A mass of 12 kg of saturated refrigerant-134a vapor is contained in a piston-cylinder device at…

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Q: At t = 280 degrees celcius and S = 5.72 Kj/kg-K. Determine the Enthalpy and Internal Energy with the…

A: The first law of thermodynamics asserts that even if a system's total energy is changed from one…

Q: 1-m' tank containing air at 45°C and 500 kPa is connected through a valve to another tank containing…

A: Given Data  The volume of air in tank 1, V1=1m3 The temperature of the air in tank 1, T1=45C=318K…

Q: Determine the enthalpy of liquid water at 100°C and 15 MPa (a) by using compressed liquid tables,…

A: Given: The value of temperature is T=100 ⁰C. The value of pressure is P=15 MPa. Part (a) Refer the…

Q: How many BTU of heat are required to vaporize 11 lb of water at 212 0C?

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Q: For final answers: h and u (correct to 2 decimal places), s and v (correct to four decimal places).…

A: For 102.7 KPa: From the steam table: Saturation temperature→Tsat1=101°C=374 K  Entropy of saturated…