In: Physics
Consider a function that describes the values of Cp
as a function of temperature, relative to the
water vapor (gas), in the temperature range between 100
oC and 700 oC:
Cp(H2 O, g) (J
K-1mol-1) = 30.54 + 0.01029T (T / K)
(a) Calculate the amount of heat required to raise the temperature
of two moles of water vapor at constant pressure to 100
oC to 500 oC.
b) Calculate the entropy variation associated with the heating
process referred to in the previous paragraph.
c) Calculate the variation of the neighborhood entropy resulting
from the previous process, assuming that the neighborhood is
maintained at a constant temperature of 500 oC.
d) Based on the 2nd Principle of Thermodynamics, evaluate, if
justified, if the process described previously occurs
reversibly.
Note: I need help mainly on (c) and (d)