A Carnot cycle is a cycle of special interest because: O When it is careflly constructed in a laboratory, it provides an upper limit on cycle efficiency. O It provides the maximum efficiency for any cycle It operates between two constant-temperature thermal reservoirs It establishes a lower limit on cycle efficiency.

a Because energy can be changed from one form to another, the energy lost by one system cannot be gained by another system in a different form. The internal energy of a system is the difference of heat exchange and the work done. The symbol for heat exchange is Q. TRUE OR FALSE

Please list if value is from NIST website or steam tables

This problem is (6.21) from a book  "Thermodynamics and Statistical Mechanics An Integrated Approach by M. Scott Shell"

As shown in the figure below, a reversible power cycle receives energy QH by heat transfer from a hot reservoir at TH and rejects energy Qc by heat transfer to a cold reservoir at Tc. Hot reservoir Boundary- ZOH R Cold reservoir O at-T (a) If TH=600 K and Tc=400 K, what is the thermal efficiency? (b) If TH-500°C, Tc-20°C, and Wayde 200 kJ, what are QH and Qc. each in kJ? (c) If n = 50% and Tc= 40°F, what is TH, in °F? (d) If n = 40% and TH - 727°C, what is Tc. in °C? W cycle

A Stirling cycle is a thermodynamic cycle similar to the Carnot cycle and is defined by the following processes. -> 2: Isothermal expansion -> 3: isochoric cooling -> 4: isothermal heating -> 1: isochoric heating Solve the graph for  a Stirling cycle with the given information in which 50g of Ar (treated as an ideal gas) is isothermally expanded from 4L to 16L at a temperature of 700K. The sample is then undergoes isochoric cooling to 298K.  The sample is then isothermally compressed to 3L and finally undergoes isochoric heating back to 700K.