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3rd test, Phys I. Fall 2017 1. What...
.85-120 Thermodynamics Tutorial 3 Problem 1. An inventor claims to have invented 4 engines, each of...
.85-120 Thermodynamics Tutorial 3 Problem 1. An inventor claims to have invented 4 engines, each of which operates between constant-temperature reservoirs of 400 and 300 K. Consider the 1st and 2nd laws of thermodynamics to evaluate the engines. For each engine, state and explain why it does or doesn't violate the 1st and 2nd Laws of Thermo. 1st law hint: Think quantity of work. 2nd Law hint: Think process efficiency. Engine 1 2 3 4 QH (J) 200 500 600...
- Question 1 (a) In an ideal gas mixture, the partial pressure of a constituent gas...
- Question 1 (a) In an ideal gas mixture, the partial pressure of a constituent gas is: 25 points inversely proportional to the mole fraction inversely proportional to the square of the mole fraction equal to the mole fraction directly proportional to the mole fraction (b) The value of the universal molar gas constant is: 8.3145 J/(kmol) 8.3145 kJ/(kg) 8.3145 J/(kg) 8314.5 J/(kmol K) (c) A mixture of ideal gases consists of 4.42 kg of carbon monoxide (CO) and 5.91...
Question 3 A rigid tank, of 0.5 m volume, contains an ideal-gas mixture at 300 K....
Question 3 A rigid tank, of 0.5 m volume, contains an ideal-gas mixture at 300 K. The mixture is made up of 2.4 kg of gas A and 1.4 kg of gas B, the molecular weights of which are MA = 32.0 kg/kmole and M 28.0 kg/kmole, respectively. i. Determine the mass fraction of A and B. (3 marks] ii. Determine the mole fraction of A and B. [5 marks] iii. Determine the molecular weight of the mixture. [2 marks]...
please do both and make sure it's correct. I really need help and i have gotten...
please do both and make sure it's correct. I really need help
and i have gotten the wrong answer twice.
When gas expands in a cylinder with radius r, the pressure P at any given time is a function of the volume V: P = P(V). The force exerted by the gas on the piston (see the figure) is the product of the pressure and the area: F = ner2p. The work done by the gas when the volume expands...
a) If there is a vacuum above the piston, what is the combined weight of the...
a) If there is a vacuum above the piston, what is the combined
weight of the piston and masses, in Newtons?
b) How many moles of N2 gas are in the sample?
c) (fill in the blank): In step 2, the pin is reinserted and the
gas is heated until the pressure is 3.0 atmospheres. The new
temperature and volume are __________ K and ________
cm3. The amount of work done on the gas is __________J;
the amount of heat...
solve only circle mark 5 question . must be solve all . I will rate ....
solve only circle mark 5 question . must be solve all
. I will rate .
向 ti tuLihiot engines A and B are operated in succession. The first one, A roceives heat rejects to sink at T,K The second engine 石-300K. If the work outputs of two engines are equal, then the value of T, is (a) 100K from a source at T, -800K and e B receives lheat rejected by the first engine and rejects to another sink...
just need answers no explanation required. Question 23 1 pts At what Kelvin temperature does the...
just
need answers no explanation required.
Question 23 1 pts At what Kelvin temperature does the rms speed of the oxygen (O2) molecules in the air near the surface of the earth become equal to the escape speed from the earth? (R-8.31 /mol K;molar mass of O, gas is 32 g/mol; radius of the earth Re - 6.37 x 10ºm; the escape speed from the earth is 11.2 km/s) 1.6 x 10K 8.0 x 10K 1.1 x 10K 3.6 x...
Problems 1. According to the Ideal Gas Law, which of the following is/are correct for a...
Problems 1. According to the Ideal Gas Law, which of the following is/are correct for a gas cylinder of fixed volume filled with one mole of oxygen gas? Please explain each one. a. When the temperature of the cylinder changes from 15 °C to 30 °C, the pressure inside the cylinder doubles. b. When a second mole of oxygen is added to the cylinder, the ratio T/P remains constant. C. An identical cylinder filled with the same pressure of hydrogen...
T(N)=352 please I need the answer urgent Question 1 The following gas phase reaction produces ethanol...
T(N)=352 please I need the answer urgent
Question 1 The following gas phase reaction produces ethanol (C2H5OH) by catalytic hydrogenation of acetaldehyde (CH3CHO). The reaction reaches equilibrium at a temperature of T= T(N) and a pressure of 3 bar: CH,CHO(g) + H, (g) C,H,OH (8) The reactive system initially contains 1.5 moles of Hydrogen (Ha) for each mole of acetaldehyde (CH3CHO). The mixture is assumed to be an ideal gas. T(N) is the temperature corresponding to the student number as...
1: (10 marks) In the following questions, select the correct answer from choices followed each question...
1: (10 marks) In the following questions, select the correct answer from choices followed each question and put the answer in the answer sheet: 1-A container filled with a sample of an ideal gas at the pressure of 150 Kpa. The gas is compressed isothermally to one-third of its original volume. What is the new pressure of the gas d-900 kpa a- 300 kpa b- 450 kpa c- 600 kpa 2- In the SI system of units, the absolute temperature...
.85-120 Thermodynamics Tutorial 3 Problem 1. An inventor claims to have invented 4 engines, each of which operates between constant-temperature reservoirs of 400 and 300 K. Consider the 1st and 2nd laws of thermodynamics to evaluate the engines. For each engine, state and explain why it does or doesn't violate the 1st and 2nd Laws of Thermo. 1st law hint: Think quantity of work. 2nd Law hint: Think process efficiency. Engine 1 2 3 4 QH (J) 200 500 600...
- Question 1 (a) In an ideal gas mixture, the partial pressure of a constituent gas is: 25 points inversely proportional to the mole fraction inversely proportional to the square of the mole fraction equal to the mole fraction directly proportional to the mole fraction (b) The value of the universal molar gas constant is: 8.3145 J/(kmol) 8.3145 kJ/(kg) 8.3145 J/(kg) 8314.5 J/(kmol K) (c) A mixture of ideal gases consists of 4.42 kg of carbon monoxide (CO) and 5.91...
Question 3 A rigid tank, of 0.5 m volume, contains an ideal-gas mixture at 300 K. The mixture is made up of 2.4 kg of gas A and 1.4 kg of gas B, the molecular weights of which are MA = 32.0 kg/kmole and M 28.0 kg/kmole, respectively. i. Determine the mass fraction of A and B. (3 marks] ii. Determine the mole fraction of A and B. [5 marks] iii. Determine the molecular weight of the mixture. [2 marks]...
please do both and make sure it's correct. I really need help
and i have gotten the wrong answer twice.
When gas expands in a cylinder with radius r, the pressure P at any given time is a function of the volume V: P = P(V). The force exerted by the gas on the piston (see the figure) is the product of the pressure and the area: F = ner2p. The work done by the gas when the volume expands...
a) If there is a vacuum above the piston, what is the combined
weight of the piston and masses, in Newtons?
b) How many moles of N2 gas are in the sample?
c) (fill in the blank): In step 2, the pin is reinserted and the
gas is heated until the pressure is 3.0 atmospheres. The new
temperature and volume are __________ K and ________
cm3. The amount of work done on the gas is __________J;
the amount of heat...
solve only circle mark 5 question . must be solve all
. I will rate .
向 ti tuLihiot engines A and B are operated in succession. The first one, A roceives heat rejects to sink at T,K The second engine 石-300K. If the work outputs of two engines are equal, then the value of T, is (a) 100K from a source at T, -800K and e B receives lheat rejected by the first engine and rejects to another sink...
just
need answers no explanation required.
Question 23 1 pts At what Kelvin temperature does the rms speed of the oxygen (O2) molecules in the air near the surface of the earth become equal to the escape speed from the earth? (R-8.31 /mol K;molar mass of O, gas is 32 g/mol; radius of the earth Re - 6.37 x 10ºm; the escape speed from the earth is 11.2 km/s) 1.6 x 10K 8.0 x 10K 1.1 x 10K 3.6 x...
Problems 1. According to the Ideal Gas Law, which of the following is/are correct for a gas cylinder of fixed volume filled with one mole of oxygen gas? Please explain each one. a. When the temperature of the cylinder changes from 15 °C to 30 °C, the pressure inside the cylinder doubles. b. When a second mole of oxygen is added to the cylinder, the ratio T/P remains constant. C. An identical cylinder filled with the same pressure of hydrogen...
T(N)=352 please I need the answer urgent
Question 1 The following gas phase reaction produces ethanol (C2H5OH) by catalytic hydrogenation of acetaldehyde (CH3CHO). The reaction reaches equilibrium at a temperature of T= T(N) and a pressure of 3 bar: CH,CHO(g) + H, (g) C,H,OH (8) The reactive system initially contains 1.5 moles of Hydrogen (Ha) for each mole of acetaldehyde (CH3CHO). The mixture is assumed to be an ideal gas. T(N) is the temperature corresponding to the student number as...
1: (10 marks) In the following questions, select the correct answer from choices followed each question and put the answer in the answer sheet: 1-A container filled with a sample of an ideal gas at the pressure of 150 Kpa. The gas is compressed isothermally to one-third of its original volume. What is the new pressure of the gas d-900 kpa a- 300 kpa b- 450 kpa c- 600 kpa 2- In the SI system of units, the absolute temperature...
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