How to calculate the ratio of the heat required

Reference no: EM13512213

A thermally powered refrigerator receives heat from a flame at 400 C and withraws heat from a cold box at -40 C. If the machine is reversible and all heat is discharged at 30 C, calculate the ratio of the heat required at at 400 C to that withdrawn at -40 C.

Reference no: EM13512213

Questions Cloud

How should interest revenue from temporarily invested : How should interest revenue from temporarily invested excess funds borrowed to finance the construction of assets be accounted for?

Evaluate the maximum concentration in m of silver : Calculate the maximum concentration in M of silver ions in a solution that contains 0.025 M CO3^2-. The ksp of AG2CO3 is 8.1 x 10^-12

Review the standard costs : Review the Standard costs: wake up and smell the coffee.article. When evaluating performance, many organizations compare current results with the actual results of previous accounting periods.

How much will it drop by the time it reaches a catcher : A major-league pitcher can throw a ball in excess of 41.5 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches a catcher who is 17.0 m away from the point of release

How to calculate the ratio of the heat required : A thermally powered refrigerator receives heat from a flame at 400 C and withraws heat from a cold box at -40 C. If the machine is reversible and all heat is discharged at 30 C, calculate the ratio of the heat required at at 400 C to that withdraw..

Find the minimum rate of flow of water through electromagnet : A large electromagnet draws a current of 261.00 A at 311.00 V. The coils of the electromagnet are cooled by a flow of water passing over them. what is the minimum rate of flow of water through the electromagnet

Compute hanson weighted-average accumulated : Hanson Company is constructing a building. Construction began on February 1 and was completed on December 31.

Expect the annual fixed manufacturing costs : Variable selling costs are 10% of sales dollars. The company expects the annual fixed manufacturing costs for the new camera to be $3,500,000.

Explain 2-cholorobutenedioic acids dehydrochlorinate : Both (E)- and (Z)- 2-cholorobutenedioic acids dehydrochlorinate to give acetylene dicarboxylic acid. The Z acid reacts about 50 times faster than the E acid. Explain.

User Account

All Pages