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You are writing energy balances for a compound for which you cannot find heat capacity or...
There is a compound you are trying to write energy balances for, which you cannot find...
There is a compound you are trying to write energy balances for,
which you cannot find heat capacity or latent heat data.
you know about the material: its molecular formula (),
and it is a liquid at room temperature, has a normal boiling point
of
°C.
Use this infomation to estimate the enthalpy of the vapor of this
substance at
°C relative to the liquid at
°C. (in kJ/mol)
We were unable to transcribe this image282 282 55
Problem 9.10 Trimethylpentane The standard heat of combustion (AH) of liquid 2,3,3-trimethylpentane (CgH18) is reported in...
Problem 9.10 Trimethylpentane The standard heat of combustion (AH) of liquid 2,3,3-trimethylpentane (CgH18) is reported in a table of physical properties to be - 4850.0 kJ/mol. A footnote indicates that the reference temperature for the reported value is 25°C and the presumed combustion products are CO2(g) and H20(9). The heat capacity of water is approximately 75.40 J/(mol K) over the temperature range of interest. Physical Property Tables Heat of Combustion There is some question about the accuracy of the reported...
Problem: The condenser in an air conditioning system is a heat exchanger in which cool air...
Problem: The condenser in an air conditioning system is a heat exchanger in which cool air absorbs latent energy from the refrigerant, condensing the refrigerant from vapor to liquid. Refrigerant R-134 enters the condenser at 1 MPa and 90°C. It leaves the condenser at 1 MPa and 30°C. Cool air enters the condenser at 100 kPa and 27°C at a volume flow rate of 10 m3/s, and it leaves at 95 kPa and 60°C. Assume the specific heat of the...
Problem 7.32 Heating Ethane with Steam Saturated steam at a gauge pressure of 3.00 bar is...
Problem 7.32 Heating Ethane with Steam Saturated steam at a gauge pressure of 3.00 bar is to be used to heat a stream of ethane. The ethane enters a heat exchanger at 16°C and 1.5 bar gauge pressure at a rate of 895 m3/min and is heated at constant pressure to 93°C. The steam condenses and leaves the exchanger as a liquid at 20.0°C. The specific enthalpy of ethane at the given pressure is 941 kJ/kg at 16°C and 1073...
I need help with question 22? 16 the lab and turn two identical heating U heat...
I need help with question 22?
16 the lab and turn two identical heating U heat 100 of pure water and 100 of me 5 are at room temperature, Aer couple of minutes of we temperature of methanol is higher than that of water. What is observation? a Liquid water has a higher boiling point than liquid methano b. Liquid methanol has a higher boiling point than liquid C. Liquid waterS our cheal capacithan d. Liquid methanol has a higher...
PLEASE ANSWER QUICKLY!! I WILL THUMBS UP! Thank you so much in advance!! The heat-pump system...
PLEASE ANSWER QUICKLY!! I WILL THUMBS UP! Thank you so much in
advance!!
The heat-pump system shown is designed to provide water-heating and space-cooling. The system includes a heat exchanger to subcool the R134a refrigerant at the outlet of the water heater while heating the refrigerant at the outlet of the evaporator. Given the following data, determine the enthalpy at each station, 1 through 6, using the R134a property tables (click here). Type your answers hy through h6 in the...
Thermodynamics one pls clear hand writing thanks (i) Define pure substance and comprehensively describe the phase...
Thermodynamics one
pls clear hand writing
thanks
(i) Define pure substance and comprehensively describe the phase changes of a pure substance considering water as an example. Use diagrams to illustrate your understanding of this point.. (1 mark) (ii) The variations of properties during phase-change processes are best studied and understood with the help of property diagrams including the T-v, P-v, and P-T diagrams for pure substances. Taking water as an example, comprehensively sketch and discuss how these tables (1 mark)...
System Model: Automotive Air Conditioning System Outside Air Temp: 45 oC Car Interior Air Temp: 22...
System Model: Automotive Air Conditioning System Outside Air Temp: 45 oC Car Interior Air Temp: 22 oC Heat Load = 4.2 kJ/sec rate at which heat must go in to the air conditioner to be removed from the car’s interior Refrigerant: R134a HINT: Heat enters an air conditioning system where? Refrigerant 134a … - leaves the evaporator coil and enters the compressor as a saturated vapor at the evaporator pressure of 2.8 bars. - It leaves the compressor at...
PLEASE ANSWER QUICKLY!! I WILL THUMBS UP! Thank you so much in advance!! Neatly sketch the...
PLEASE ANSWER QUICKLY!! I WILL THUMBS UP! Thank you so much in
advance!!
Neatly sketch the complete heat-pump cycle from Question 1 on a P-h diagram, showing clearly all six processes (1) - (2) - (3) - (4) - (5) - (6)-(1). If you have a printer available, you may print this PDF file of the R134a P-h diagram. Otherwise, draw a very neat scale copy of the P-h diagram shown below. You do not have to type any response...
can someone help me find the answeres for these questions? The answer you fill in on...
can someone help me find the answeres for these
questions?
The answer you fill in on your bubble sheet is the one that will You should circle the answer on this sheet for your own reference You can only get the 4 points for this question if you have filled in your name and Do you understand this? а.yes IsU bubble. 1. ly on the bubble sheet and you completely and darkly fill in the ""Check following on the bubble...
There is a compound you are trying to write energy balances for,
which you cannot find heat capacity or latent heat data.
you know about the material: its molecular formula (),
and it is a liquid at room temperature, has a normal boiling point
of
°C.
Use this infomation to estimate the enthalpy of the vapor of this
substance at
°C relative to the liquid at
°C. (in kJ/mol)
We were unable to transcribe this image282 282 55
Problem 9.10 Trimethylpentane The standard heat of combustion (AH) of liquid 2,3,3-trimethylpentane (CgH18) is reported in a table of physical properties to be - 4850.0 kJ/mol. A footnote indicates that the reference temperature for the reported value is 25°C and the presumed combustion products are CO2(g) and H20(9). The heat capacity of water is approximately 75.40 J/(mol K) over the temperature range of interest. Physical Property Tables Heat of Combustion There is some question about the accuracy of the reported...
Problem 7.32 Heating Ethane with Steam Saturated steam at a gauge pressure of 3.00 bar is to be used to heat a stream of ethane. The ethane enters a heat exchanger at 16°C and 1.5 bar gauge pressure at a rate of 895 m3/min and is heated at constant pressure to 93°C. The steam condenses and leaves the exchanger as a liquid at 20.0°C. The specific enthalpy of ethane at the given pressure is 941 kJ/kg at 16°C and 1073...
I need help with question 22?
16 the lab and turn two identical heating U heat 100 of pure water and 100 of me 5 are at room temperature, Aer couple of minutes of we temperature of methanol is higher than that of water. What is observation? a Liquid water has a higher boiling point than liquid methano b. Liquid methanol has a higher boiling point than liquid C. Liquid waterS our cheal capacithan d. Liquid methanol has a higher...
PLEASE ANSWER QUICKLY!! I WILL THUMBS UP! Thank you so much in
advance!!
The heat-pump system shown is designed to provide water-heating and space-cooling. The system includes a heat exchanger to subcool the R134a refrigerant at the outlet of the water heater while heating the refrigerant at the outlet of the evaporator. Given the following data, determine the enthalpy at each station, 1 through 6, using the R134a property tables (click here). Type your answers hy through h6 in the...
Thermodynamics one
pls clear hand writing
thanks
(i) Define pure substance and comprehensively describe the phase changes of a pure substance considering water as an example. Use diagrams to illustrate your understanding of this point.. (1 mark) (ii) The variations of properties during phase-change processes are best studied and understood with the help of property diagrams including the T-v, P-v, and P-T diagrams for pure substances. Taking water as an example, comprehensively sketch and discuss how these tables (1 mark)...
PLEASE ANSWER QUICKLY!! I WILL THUMBS UP! Thank you so much in
advance!!
Neatly sketch the complete heat-pump cycle from Question 1 on a P-h diagram, showing clearly all six processes (1) - (2) - (3) - (4) - (5) - (6)-(1). If you have a printer available, you may print this PDF file of the R134a P-h diagram. Otherwise, draw a very neat scale copy of the P-h diagram shown below. You do not have to type any response...
can someone help me find the answeres for these
questions?
The answer you fill in on your bubble sheet is the one that will You should circle the answer on this sheet for your own reference You can only get the 4 points for this question if you have filled in your name and Do you understand this? а.yes IsU bubble. 1. ly on the bubble sheet and you completely and darkly fill in the ""Check following on the bubble...
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