Find the entropy generation

Reference no: EM131233157

1. An insulated cylinder/piston contains R-134a at 150 lbf /in.², 120 F, with a volume of 3.5 ft³. The R-134a expands, moving the piston until the pressure in the cylinder has dropped to 15 lbf/in.². It is claimed that the R-134a does 180 Btu of work against the piston during the process. Is that possible?

2. Heat transfer from a 70 F kitchen to a block of 3 lbm ice at 15 F melts it to liquid at 50 F. Find the entropy generation.

Reference no: EM131233157

Questions Cloud

Project impact database and the clinical guidelines : Why are the Project IMPACT database and the clinical guidelines separated from the institutional electronic health record?

Key to stimulating economic growth : We can safely agree that saving is key to stimulating economic growth. Saving is a residue of what is left from funding basic necessities ad a bit more.

Identify two strategies that your current employer uses : Identify at least two strategies that your current or past employer uses in order to protect the civil rights and liberties of its workers. Provide a rationale for your response.

Thousands of pounds of meat : How many thousands of pounds of meat would you recommend that the government purchase to keep the price at $4 per pound?

Find the entropy generation : Heat transfer from a 70 F kitchen to a block of 3 lbm ice at 15 F melts it to liquid at 50 F. Find the entropy generation.

Determine the entropy generated in the cooling process : A 1-gal jug of milk at 75 F is placed in your refrigerator, where it is cooled down to the refrigerator's inside temperature of 40 F. Assume the milk has the properties of liquid water and find the entropy generated in the cooling process.

Price elasticity of supply and demand for salt : The following scenarios describe the price elasticity of supply and demand for salt:

Which governmental purpose is illustrated in the article : What was the article about? Give a brief description that allows the reader to understand the article without reading it in full. Which governmental purpose or function as listed in the Preamble is illustrated in the article? Explain.

Income of consumers of cell phones : Using the demand curve shifters (PYNTE), explain whether each of the following will increase or decrease demand for cell phones. Tell whether the demand curve shifts to the right or to the left. a. A decrease in the income of consumers of cell pho..

User Account

All Pages