Question: A Carnot engine whose low-temperature reservoir is at -90.0oC has an efficiency of 40.0%. An engineer is assigned the problem of increasing this to 45.0%.

A Carnot engine whose low-temperature reservoir is at -90.0oC has an efficiency of 40.0%. An engineer is assigned the problem of increasing this to 45.0%.
(a) By how many Celsius degrees must the temperature of the high-temperature reservoir be increased if the temperature of the low-temperature reservoir remains constant?
(b) By how many Celsius degrees must the temperature of the low-temperature reservoir be decreased if the temperature of the high-temperature reservoir remains constant?

Step by Step Solution

★★★★★

3.41 Rating (176 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Ic IDENTIFY Cart TH SET UP Tc 900C 183 K where I and I must be in kelvins EXECU... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

P-T-S-L (131).docx

120 KBs Word File

Students Have Also Explored These Related Thermodynamics Questions!

A Carnot engine whose high-temperature reservoir is at 620 K takes in 550 J of heat at this temperature in each cycle and gives up 335 J to the low-temperature reservoir. (a) How much mechanical work...

Engine 1 has an efficiency of 0.18 and requires 5500 J of input heat to perform a certain amount of work. Engine 2 has an efficiency of 0.26 and performs the same amount of work. How much input heat...

An old gas turbine has an efficiency of 21 percent and develops a power output of 6000 kW. Determine the fuel consumption rate of this gas turbine, in L/min, if the fuel has a heating value of 42,000...

( 1 0 pts ) A Carnot engine whose low - temperature reservoir is at 1 7 C has an efficiency of 4 0 % . By how much should the temperature of the high - temperature reservoir be increased to increase...

A Carnot engine whose low-temperature reservoir is at 17oC has an efficiency of 40%. By how much should the temperature of the high-temperature reservoir be increased to increase the efficiency to...

A Carnot engine whose high - temperature reservoir is at 6 6 0 KK takes in 5 4 0 JJ of heat at this temperature in each cycle and gives up 3 3 0 JJ to the low - temperature reservoir. How much...

A Carnot engine whose high - temperature reservoir is at 6 8 0 KK takes in 5 6 0 JJ of heat at this temperature in each cycle and gives up 3 4 0 JJ to the low - temperature reservoir. What is the...

A Carnot engine whose high-temperature reservoir is at 400 K has an efficiency of 30.0%.By how much should the temperature of the low-temperature reservoir be changed to increase the efficiency to...

Plot the coefficient of performance versus the temperature of a high - temperature reservoir for a Carnot refrigerator whose low - temperature reservoir is at 5 C and whose high - temperature...

A Carnot engine whose low temperature reservoir is at 3 5 C has an efficiency of 0 . 4 . Your boss wants to increase the efficiency to 0 . 6 5 . By how many degrees the temperature of the hot...

5. Mark the statements concerning Gate Arrays which are true. Gate Arrays have better performances, in terms of speed and consumption, than FPGAS. V In the first Gate Arrays, uncommitted cells were...

The following represents an extract from the Statement of Financial Position of the assets and liabilities of Henderson Limited for the years ending 30 June 2020 and 2019. Assets 2020 $ 2019 $ Cash...

Which of the following would be an initial credit item in the current account? a. an Australian tourist's spending while on holiday in Singapore. b. an Australian firm hires a non-resident Indonesian...

Describe transposable elements (TEs), including how they localise in the genome and how they can be regulated by epigenetic mechanisms. Include in your answer: - What are TEs and how were TEs...

Explain what is Quantitative Trait Loci (QTL) mapping and how it can benefit both plant breeding and fundamental plant science.

Explain why leaf polarity is very important for a functional leaf. Describe how leaf polarity is achieved.

Using cosine transform to show that the steady temperature in the semi-infinite solid y > 0 when temperature on the surface y 0 is kept at unity over strip |x| > a and zero outside the strip is +x ...

A major auto dealer has recently unleashed a new advertising campaign for its line of 4-wheel-drive vehicles. Knowing that previously 32% of all people who saw the commercial and came to visit the...

Determine the net heat transfer by radiation between two surfaces A and B. expressed as watts per square meter of area B, if the temperatures of A and B are 500 and 200C, respectively, and the...

Consider the following information: Rate of Return If State Occurs State of Probability of Economy State of Economy Stock A Stock B Stock C Boom 0.18 0.353 0.453 0.333 Good 0.42 0.123 0.103 0.173...

A friend of yours tells you that she has her money invested in the risk-free asset, but she wants to increase the riskiness of her portfolio to gain a higher expected return. Her financial advisor...

help 8. Portfolio beta and weights Brandon is an analyst at a wealth management firm. One of his clients holds a $5,000 portfolio that consists of four stocks. The imvestment allocation in the...