Question

A Carbon dioxide fire extinguisher initially contains 5.5lbm of CO2 gas. In “real life” the CO2...

A Carbon dioxide fire extinguisher initially contains 5.5lbm of CO2 gas. In “real life” the CO2 would not be all gas, but for this problem assume that it is. The CO2 gas has an initial pressure of 860psia and initial temperature of +72oF. Immediately after putting out a fire, it has a final pressure of 100psia and a final temperature of -30oF. Assume ideal gas law behavior.

a) Show that the specific gas constant for CO2 gas is approximately R=1131ft∙lbf/(slug∙R).

b) What is the initial density of the CO2 gas in the fire extinguisher?

c) What is the initial mass of CO2 gas in slug?

d) What is the initial internal volume of the fire extinguisher?

e) Assume that the internal volume does not change. What is the final mass-density of CO2 gas inside the fire extinguisher (at 100psia, -30oF)?

f) What is the final mass of CO2 gas inside the fire extinguisher? Give answer in both slug and in lbm.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 18.0-L tank of carbon dioxide gas (CO2) is at a pressure of 9.60 ✕ 105...
A 18.0-L tank of carbon dioxide gas (CO2) is at a pressure of 9.60 ✕ 105 Pa and temperature of 21.0°C. (a) Calculate the temperature of the gas in Kelvin. K (b) Use the ideal gas law to calculate the number of moles of gas in the tank. mol (c) Use the periodic table to compute the molecular weight of carbon dioxide, expressing it in grams per mole. g/mol (d) Obtain the number of grams of carbon dioxide in the...
A 22.0-L tank of carbon dioxide gas (CO2) is at a pressure of 9.90 ? 105...
A 22.0-L tank of carbon dioxide gas (CO2) is at a pressure of 9.90 ? 105 Pa and temperature of 18.0°C. (a) Calculate the temperature of the gas in Kelvin. _______ K (b) Use the ideal gas law to calculate the number of moles of gas in the tank. mol (c) Use the periodic table to compute the molecular weight of carbon dioxide, expressing it in grams per mole. ______ g/mol (d) Obtain the number of grams of carbon dioxide...
A stream of carbon dioxide (CO2) at 120 F and 100 psig is fed to a...
A stream of carbon dioxide (CO2) at 120 F and 100 psig is fed to a process at a rate of 100 ft3/h. i. Assuming ideal gas behavior, calculate the density (lbm/ft3) and the mass flow rate of CO2 (lbm/min). ii. Is the ideal gas equation of state a good approximation for the given conditions.
A cylinder contains 0.200 mol of carbon dioxide (CO2) gas at a temperature of 30.0 ∘C....
A cylinder contains 0.200 mol of carbon dioxide (CO2) gas at a temperature of 30.0 ∘C. The cylinder is provided with a frictionless piston, which maintains a constant pressure of 1.00 atm on the gas. The cylinder is placed on a hot plate and a 920 J of heat flows into the gas, thereby raising its temperature to 124 ∘C. Assume that the CO2 may be treated as an ideal gas. What is the change in internal energy of the...
Exhaust gas from a combustion process is 70% Nitrogen, 15% Carbon Dioxide, 10% Carbon monoxide, and...
Exhaust gas from a combustion process is 70% Nitrogen, 15% Carbon Dioxide, 10% Carbon monoxide, and 5% Oxygen. The absolute pressure is 0.8 atmospheres. The temperature of the exhaust gas is T=240oF. Find: The specific gas constant R of the exhaust gas in units of ft*lbf/slug*R
A tank with a volume of 8.6 ft3 contains 5.36 lbmol of carbon monoxide (CO) gas...
A tank with a volume of 8.6 ft3 contains 5.36 lbmol of carbon monoxide (CO) gas at a pressure of 3500 lbf/in.2 Determine the temperature, in °R. Determine the percent error in temperature of assuming ideal gas behavior at this state for CO. Please provide the complete answer.
If a tender in a fire starter requires an ignition temperature of 2500F, what is the...
If a tender in a fire starter requires an ignition temperature of 2500F, what is the compression ratio (inital volume over final volume) needed to light the tender and what is the work required for an initial mass of 8.7x10^-5 lbm? use Rair = 53.35 (ft lbf)/(lbm R)
Carbon dioxide gas is compressed at steady state from a pressure of 16 lbf/in2 and a...
Carbon dioxide gas is compressed at steady state from a pressure of 16 lbf/in2 and a temperature of 32oF to a pressure of 50 lbf/in2 and a temperature of 110oF. The gas enters the compressor with a velocity of 30 ft/s and exits with a velocity of 80 ft/s. The mass flow rate is 3000 lb/hr. The magnitude of the heat transfer rate from the compressor to its surroundings is 5% of the compressor power input. Use the ideal gas...
Carbon dioxide (CO2) gas is compressed at steady state from 0.8 bar and 17 °C to...
Carbon dioxide (CO2) gas is compressed at steady state from 0.8 bar and 17 °C to 3.5 bar with a compressor drawing 10 kW of power. The CO2 flows through the compressor at a rate of 0.1 m3/s through an inlet orifice that is 200 cm2. The gas leaves the compressor at a velocity of 12 m/s. Heat loss from the compressor to the surroundings is roughly 2% of the power fed to the compressor. In addition to the Give,...
A saturated solution of carbon dioxide in water contains 3.00 g of CO2 when the CO2...
A saturated solution of carbon dioxide in water contains 3.00 g of CO2 when the CO2 partial pressure is 8.0 atm. What mass of CO2 will escape if the partial pressure is lowered to 3.2 atm?