4. Which property of a system increases when heat is transferred: (a) at constant volume, (b) at constant pressure?

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A: State functions are those functions whose values are not dependent on the transition path of the…

Q: Nitrogen gas has a heat capacity of 20.8 and 29.1 J/mol-C at constant volume and constant pressure…

A: Given Data: Specific heat capacity of N2 at constant Volume;Cv=20.8 J/mol °CSpecific heat capacity…

Q: What is flow energy? Do fluids at rest possess any flow energy?

A: We have to answer the following  what is flow energy and do the fluids at rest possess any flow…

Q: Athin isothermal disk, having a diameter of 1.8 cm, is maintained at 40◦C and buried in a…

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Q: 46. Air enters a diffuser with a velocity of 200m/s. Determine the speed of sound in m/s at the…

A: Given  Temperature (T) = 38 o C                              = 311.15 Velocity  = 200 m/s

Q: Which of the following crystallizers work without contacting feed solution and coolant in a single…

A: To choose the correct option that shows the name of crystallizer in which there is no contact of…

Q: Write a process path for the heating and compressing of nitrogen. Include the state of the coumpound…

A: Given, Initial temperature, T1 = 293.15 K Initial pressure, P1 = 2×105 Pa Let the moles of the gas…

Q: Q4. A 4.0-cm diameter sphere is maintained at 38°C and submerged in water at 15°C. Calculate the…

A:

Q: The process of injecting water into a well under high pressure is called Thermal EOR a. False b.…

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Q: 12. Plunging heated metal to water for annealing is an example of

A: For Annealing process ,plunging heated metal to water

Q: How many heat are needed to change 50 kg of ice at -10.0 °C to steam at 250 °C?

A: Given: m  = 50 kg Ti = -10.0 °C (Ice) Tf = 250 °C (Steam)

Q: I understand that we have to use this formula Heat current=(k. Area. change in temperature)/length…

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Q: The expansion of a closed system occurs at a constant pressure, there is no change in their kinetic…

A:

Q: Why the thermal conductivity of metal decreases with the increase in temperature. and   Why the…

A: The reason for the decrease in thermal conductivity of the metal with increase in temperature is to…

Q: B-Compare between Kerosene and Lube oil according to the following(Put > or <) 1- Kerosene 0 Lube…

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Q: . Why is the pressure the same in a piston and cylinder system that has been heated, but still…

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Q: 8. For polytropic process the heat and work can not cross the boundary of the system * False True

A: Given, Concept of Polytropic Process Find,  For polytropic process the heat and work cannot cross…

Q: Temperature difference is not the driving force for heat transfer. O yes O No

A: heat transfer is the change in thermal energy by difference in temperature of two body let say…

Q: Determine the external pressure if ethanol boils at 60 °C?

A: The boiling point of Ethanol at new pressure(P2)=60oC To Calculate the pressure(P2)=?

Q: A block of wood and a block of steel are placed flush against each other. If temperature 1 (T1) is…

A: We have to select the correct temperature profile for the given conditions:  block of wood and and…

Q: A piston-cylinder device initially contains gas at 200 kPa. The system showed an expansion due to…

A:

Q: If a heat pump works between-15°C and 50°C. Then, the coefficient of performance is... Select one:…

A:

Q: 5. Variable Heat Generation and Equation of Energy Change. A plane wall is insulated so that…

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Q: Which of the following is the rate of heat transfer unit 1. Watt 2. Pascal 3. Joule 4. None of these

A: Heat transfer is the transfer of heat due to modes of heat transfer like conduction, convection and…

Q: Which of the following is not an intensive

A: Intensive property is a thermodynamic property which does not depend on the amount of material in…

Q: The temperature of a mole of perfed gas is Increased from 300 to 500 k. What is the change in…

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Q: Imagine gas in a piston – cylinder device. The fluid is compressed resulting to an increase in…

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Q: Type of flow wherein entropy of each fluid element remains constant. adiabatic O compressible O…

A: We have to select the correct answer about entropy for which fluid element remains constant

Q: Find the volume of nitrogen gas when change heat at temperature 20 Co to 50 Coif that gas container…

A: Given data:  Initial temperature = 20 0C Final temperature = 50 0C

Q: 1- Both heat and mass do not exchange between the system and its surrounding in system.

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: Q2:- If the amount of heat given to a system be 25 joules and the amount of work done by the system…

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Q: Cooking gas from petroleum is stored with a. thermal energy O b. chemical energy c. mechanical…

A: Cooking gas from petroleum source is, Select correct answer.

Q: Show that the friction heating in a hydraulic jump is given by 8(Z₂-Z₁)³ 42122 (7.67)

A: Friction heating in hydraulic systems occurs when fluid flows through pipes or channels,…

Q: 1. When a system absorbs heat, a part is stored within the system as the energy of internal motions…

A:

Q: 7.52. Show that the friction heating in a hydraulic jump is given by = 8(Zz - Z₁)³ 42122 (7.67)

A: Friction heating is taken as the energy loss.