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QUESTION 1 a) With the aid of diagrams, briefly explain two (2) types of thermodynamics systems. [CO1/PO1/C2] (5 marks)
Posted: Sun Jul 10, 2022 11:37 am
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- Question 1 A With The Aid Of Diagrams Briefly Explain Two 2 Types Of Thermodynamics Systems Co1 Po1 C2 5 Marks 1 (101.76 KiB) Viewed 47 times
QUESTION 1 a) With the aid of diagrams, briefly explain two (2) types of thermodynamics systems. [CO1/PO1/C2] (5 marks) b) Describe the formation of acid rain in terms of its sources and its impact on the environment. [CO1/PO1/C2] (5 marks) c) An insulated piston-cylinder device contains 1.5 L of saturated liquid refrigerant-134a at a constant pressure of 120 kPa as shown in Figure Q1(c). A paddle wheel stirs refrigerant-134a while a current of 12-ampere flows for 25 minutes through a resistor placed in the refrigerant- 134a. If three-quarters of the refrigerant-134a is evaporated during this constant pressure process and the paddle wheel does 240 kJ of works, determine the voltage of the source. Also, show the process on a P-v diagram with respect to saturation lines. [CO2/PO1/C3] (10 marks) 240kJ 12-ampere Figure Q1(c) R-134a 1.5 L 120 kPa