Solution Found!
Do 2.77 for the substance ammonia. 2.77Assume we have
Chapter 2, Problem 79HP(choose chapter or problem)
Problem 79HP
Do Problem 2.77 for the substance ammonia.
Problem 2.77
Assume we have three states of saturated vapor R-134a at +40°C, 0°C, and −40°C. Calculate the specific volume at the set of temperatures and corresponding saturated pressure assuming ideal gas behavior. Find the percent relative error = 100(v − vg)/vg with vg from the saturated R-134a table.
Questions & Answers
QUESTION:
Problem 79HP
Do Problem 2.77 for the substance ammonia.
Problem 2.77
Assume we have three states of saturated vapor R-134a at +40°C, 0°C, and −40°C. Calculate the specific volume at the set of temperatures and corresponding saturated pressure assuming ideal gas behavior. Find the percent relative error = 100(v − vg)/vg with vg from the saturated R-134a table.
ANSWER:
Solution 79HP
Step 1 of 4:
Our aim is to calculate the percent relative error of ammonia (saturated vapor) at the given temperature.
The temperature T1 = +40°C
The temperature T2 = 0°C
The temperature T3 = -40°C
The gas constant R = 0.4882 kJ/kg.K (Table A.5)