Jackson Water Department wants a program that calculates a customer's monthly water bill. The clerk will enter the current and p
revious meter readings. The program should calculate and display the number of gallons of water used and the total charge for the water. The charge for water is $7 per 1,000 gallons. The water company has a mandatory minimum that each customer must pay at least $16.67, even if their bill is lower than the minimum cost. (In other words, every customer must pay at least $16.67).
Required:
Create an IPO chart for the problem, and then desk-check the algorithm twice. For the first desk-check, use 16000 and 13000 as the current and previous meter readings, respectively. For the second desk-check, use 3675 and 1650.
Required:
Create an IPO chart for the problem, and then desk-check the algorithm twice. For the first desk-check, use 16000 and 13000 as the current and previous meter readings, respectively. For the second desk-check, use 3675 and 1650.
1 answer:
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To solve the problem it is necessary to consider the concepts and formulas related to the change of ideal gas entropy.
By definition the entropy change would be defined as
Using the Boyle equation we have
Where,
= Specific heat at constant pressure
= Initial temperature of gas
= Final temprature of gas
R = Universal gas constant
= Initial specific Volume of gas
= Final specific volume of gas
According to the statement, it is an isothermal process and the tank is therefore rigid
The equation would turn out as
<em>Therefore the entropy change of the ideal gas is 0</em>
Into the surroundings we have that
Where,
Q = Heat Exchange
T = Temperature in the surrounding
Replacing with our values we have that
<em>Therefore the increase of entropy into the surroundings is 0.76kJ/K</em>