Q4. A mass of 0.5 kg of saturated refrigerant-l34a is contained in a piston-cylinder device at 200 kPa. Initially, 70% of the mass is in the liquid phase. Now heat is transferred to the refrigerant at constant pressure until the cylinder contains vapour only. (a) Show the process on a P-v diagram with respect to saturation lines. (b) Determine the volume occupied by the refrigerant initially. (c) What type of work is done? What amount (in kJ)? (d) Calculate the total heat transferred to the refrigerant.

Q: Q₁) A piston cylinder device contains helium gas initially at 150 Kpa, 20 °C and 0.5 m³. The helium…

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Q: A piston-cylinder device initially contains steam at 200 kPa, 250 °C, and 0.4 m². In this state, a…

A: Given: State 1 P1=200 kPaT1=250oCV1=0.4 m3 State 2 P2=250 kPaV2=0.55 m3 To find: 1) Properties of…

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Q: Hydrogen gas at 65 kPa, 200 °C is heated in a closed, rigid vessel until it reaches to 400 °C.…

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Q: A fixed amount of water is enclosed in a cylinder and piston assembly. The mass of the water is 20…

A: Given-  P1 = 2000 kPa…

Q: Shown in the figure, an insulated rigid tank is divided into two equal parts by a partition.…

A: Giveninsulated tankm=4kgP1=600kPaT1=300KR=0.287 kJ/kgKCv=0.7180 kJ/kgK∆U=mCvT2-T1

Q: water contained in a closed, rigid tank, initially saturated vapor at 280 Celsius, is cooled to 100…

A: Given data:- Rigid tank means constant volume, initially saturated vapor at 280 °C and final…

Q: 5. 10 kg of R-134a at 300KPA fills a rigid container whose volume is 14 L. Determine the temperature…

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Q: erature is 32 ASSUMPTIC

A: Given: m= 5 kg  T1  =1500 C  T2 = 3200 C

Q: 5. Al insulated tank is divided into two parts by a partition. One part of the tank contains 6 kg of…

A: The first law of thermodynamics is a law of conservation of energy. It states that heat given to a…

Q: When a system that use refrigerant-134a at temperature of 95 C at pressure of 1.4 kPa is cooled at…

A: Given: The initial temperature of the refrigerant, T1 = 95°C The initial pressure of the…

Q: problem 1. A piston-cylinder device initially contains water vapor at 200 kPa, 250°C, and 0.4 m². In…

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Q: Problem 4 (+ 3 kg of oxygen is sealed in a rigid container at 150°C and 250 kPa. The gas is heated…

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Q: 1.16 A 0.5-lbm of R134a at 100 psia pressure initially at 40°F is heated until 50% of mass is…

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Q: 4. A 0.5 m rigid tank contains refrigerant-134a initially at 200 kPa and 40 percent quality. Heat is…

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Q: A rigid tank whose volume is unknown is divided into two parts by a partition. One side of the tank…

A: Answer: The final temperature of the gas is 3327℃.