What is the number density of dry air at T=20°C , P=1013.0 hPa. Answer in units...
What is the number density of dry air at T=20°C , P=1013.0 hPa. Answer in units of m-3 in the format "1.12e+99"). Assume that the dry air obeys the ideal gas law.
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What is the number density of dry air at T=20°C , P=1013.0 hPa.
Answer in units...
Problem No. 3 (20 Points) The density p of the air contained in a pressurized tank...
Problem No. 3 (20 Points) The density p of the air contained in a pressurized tank is to be calculated by measuring the pressure P and the temperature T inside the tank. Density of the air in the tank calculated is to be from the ideal gas law: P = PRT Where R = 287 kg*K for air. The temperature is to be measured with uncertainty of 5 K. The pressure is to be measured with uncertainty of 2.5 (10)...
N10. a. What is the density of air, given P- 80 kPa and T=0°C? b. What...
N10. a. What is the density of air, given P- 80 kPa and T=0°C? b. What is the temperature of air, given P-90 kPa and p 1.0 kg m-3 ? and ρ= 1.2 kg·m-3 ? C. What is the pressure of air, given T-90℉ d. Give 2 combinations of pressure and density that have a temperature of 30°C. e. Give 2 combinations of pressure and density that have a temperature of 0°C. f. Give 2 combinations of pressure and density...
A gas has a density of 2.63 g L-1 at 46 °C and P = 1.05...
A gas has a density of 2.63 g L-1 at 46 °C and P = 1.05 atm. What will be its density at 185 °C? Calculate the molar mass of the gas, assuming it obeys the ideal gas law. Density at 185 °C = g L-1 Molar mass = g mol-1
The density p of the air contained in a pressurized tank is to be calculated by...
The density p of the air contained in a pressurized tank is to be calculated by measuring the pressure and the temperature T inside the tank. Density of the air in the tank calculated is to be from the ideal gas law: P = PRT Where R = 287 for air. kg The temperature is to be measured with uncertainty of 5 K. The pressure is to be measured with uncertainty of 2.5 (10) Pa. If the nominal temperature reading...
5. i) Using the ideal gas law, find the number of air molecules per unit volume...
5. i) Using the ideal gas law, find the number of air molecules per unit volume in air at 25 ◦ C and atmospheric pressure. ii) Assuming air to be 80 % N2 and 20 % O2, show that the average molecular weight of dry air is around 28.8 grams per mol. iii) Combine this with the result from part i) to calculate the density of dry air at 25 ◦ C.
P air=29.98 in Hg P H20= 23.060 torr T room= 22.7 C V gas=88.4 mL R=0.08206...
P air=29.98 in Hg P H20= 23.060 torr T room= 22.7 C V gas=88.4 mL R=0.08206 L atm/mol K 1. Using the balanced chemical equation write two conversion factors relating mol Mg to mol H2. 2. Covert Vgas, T room, P air, and P H2O into units consistent with the ideal gas law. (1 atm=29.92 in Hg and 1 atm = 760 torr) 3. Calculate the PH2 from the following: P air=P gas= PH2 + PH2O 4. Using these equivalencies...
Air at 20 C flows through the tube shown in (Figure 1). Assume that air is...
Air at 20 C flows through the tube shown in (Figure 1). Assume
that air is an ideal fluid. The density of air is 1.20
kg/m3, the density of mercury is 13600 kg/m3.
Suppose that d1 = 2 mm and
d2 = 1.4 cm.
(A) What is the air speed of v1 at point 1? = 149
m/s
(B) What is the air speed v2 at point 2? =
????
(C) What is the volume flow rate? = 4.7*10-4
m3/s...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.1242...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.1242 kg/m3. (a) What is the number of moles contained in 1.00 m3 of an ideal gas at this temperature and pressure? mol (b) Avogadro's number of air molecules has a mass of 2.86 x 10-2 kg. What is the mass of 1.00 m3 of air? (Assume air is an ideal gas.) kg (c) Does the value calculated in part (b) agree with the stated...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.2074...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.2074 kg/m3. (a) What is the number of moles contained in 1.00 m3 of an ideal gas at this temperature and pressure? 35.0146 Your response differs from the correct answer by more than 10%. Double check your calculations, mol (b) Avogadro's number of air molecules has a mass of 2.86 x 10-2 kg. What is the mass of 1.00 m3 of air? (Assume air is...
QUESTION 1 Assuming air to be an ideal gas with a molecular weight of 28.967, what...
QUESTION 1 Assuming air to be an ideal gas with a molecular weight of 28.967, what is the density of air at 1.5 atm and 567 °C? Answer units in kg/m”. QUESTION 2 A 35 m X 35 m swimming pool is filled with water to a depth of 3.1 m. How much heat is required to raise the temperature of the water in the pool from 12 °C to 25 °C? Answer units in GJ. QUESTION 3 What is...
Problem No. 3 (20 Points) The density p of the air contained in a pressurized tank is to be calculated by measuring the pressure P and the temperature T inside the tank. Density of the air in the tank calculated is to be from the ideal gas law: P = PRT Where R = 287 kg*K for air. The temperature is to be measured with uncertainty of 5 K. The pressure is to be measured with uncertainty of 2.5 (10)...
N10. a. What is the density of air, given P- 80 kPa and T=0°C? b. What is the temperature of air, given P-90 kPa and p 1.0 kg m-3 ? and ρ= 1.2 kg·m-3 ? C. What is the pressure of air, given T-90℉ d. Give 2 combinations of pressure and density that have a temperature of 30°C. e. Give 2 combinations of pressure and density that have a temperature of 0°C. f. Give 2 combinations of pressure and density...
The density p of the air contained in a pressurized tank is to be calculated by measuring the pressure and the temperature T inside the tank. Density of the air in the tank calculated is to be from the ideal gas law: P = PRT Where R = 287 for air. kg The temperature is to be measured with uncertainty of 5 K. The pressure is to be measured with uncertainty of 2.5 (10) Pa. If the nominal temperature reading...
Air at 20 C flows through the tube shown in (Figure 1). Assume
that air is an ideal fluid. The density of air is 1.20
kg/m3, the density of mercury is 13600 kg/m3.
Suppose that d1 = 2 mm and
d2 = 1.4 cm.
(A) What is the air speed of v1 at point 1? = 149
m/s
(B) What is the air speed v2 at point 2? =
????
(C) What is the volume flow rate? = 4.7*10-4
m3/s...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.1242 kg/m3. (a) What is the number of moles contained in 1.00 m3 of an ideal gas at this temperature and pressure? mol (b) Avogadro's number of air molecules has a mass of 2.86 x 10-2 kg. What is the mass of 1.00 m3 of air? (Assume air is an ideal gas.) kg (c) Does the value calculated in part (b) agree with the stated...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.2074 kg/m3. (a) What is the number of moles contained in 1.00 m3 of an ideal gas at this temperature and pressure? 35.0146 Your response differs from the correct answer by more than 10%. Double check your calculations, mol (b) Avogadro's number of air molecules has a mass of 2.86 x 10-2 kg. What is the mass of 1.00 m3 of air? (Assume air is...
QUESTION 1 Assuming air to be an ideal gas with a molecular weight of 28.967, what is the density of air at 1.5 atm and 567 °C? Answer units in kg/m”. QUESTION 2 A 35 m X 35 m swimming pool is filled with water to a depth of 3.1 m. How much heat is required to raise the temperature of the water in the pool from 12 °C to 25 °C? Answer units in GJ. QUESTION 3 What is...
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