coup B Questions Present a brief explanation of how changes in gas pressure relates to your ability to breathe clude at least one relevant mathematical formula in your presentation. Present a brief explanation of how changes in liquid pressure relates to your pulse or your rculatory system. Include at least one relevant mathematical formula in your presentation.
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- A. Calculate the time required for molecules to diffuse in a liquid a distance of 10^(−3) cm. Assume that the average velocity of the molecules is 10^4 cm/sec and that the mean free path is 10^(−8) cm. a. 10 s b. 0.1 s c. 0.01 s d. 100 s B. Repeat the calculation for the time of diffusion in letter A in a gas at 1 atm pressure, where the mean free path is 10^(−5) cm. a. 0.00001 s b. 0.001 s c. 0.01 s d. 0.0000001 sPlease write your explanation. 1. For a fixed amount of gas,i. if the volume of the gas is doubled, what happens to the pressure of the gas?a. The answer cannot be determined without temperature information.b. The pressure of the gas becomes four times the original pressure.c. The pressure of the gas becomes double the original pressure.d. The pressure of the gas stays the same.e. The pressure of the gas becomes one half the original pressure.f. The pressure of the gas becomes one fourth of the original pressure.ii. if the volume of the gas is doubled in an isothermal process, what happens to the pressure of the gas? a. The answer cannot be determined without temperature information.b. The pressure of the gas becomes four times the original pressure.c. The pressure of the gas becomes double the original pressure.d. The pressure of the gas stays the same.e. The pressure of the gas becomes one half the original pressure.f. The pressure of the gas becomes one fourth of the original…A gas having a volume of 12 gal has a pressure of 0.24 MPa at 24°?. If the gasconstant R is equal to 212 J/(kg-K), compute the following. a. Density of the gas in kg/m^3b. Mass of the gas in slugs.c. Weight of the gas in lbf
- 21. A cylinder of gas has a tightly fitting piston. If the piston is pushed in, * i. the pressure of the gas increases. ii. the pressure of the gas decreases. iii. the pressure of the gas remains the same. iv. we can't predict whether the pressure will increase, decrease, or remain the same. Which of these statements is true? Why? 22. A cylinder of gas has a tightly fitting piston. If the piston is pushed in, i. the temperature of the gas increases, ii. the temperature of the gas decreases. iii. the temperature of the gas remains the same. iv. we can't predict whether the temperature will increase, decrease, or remain the same. Which of these statements is true? Why?1) Students are studying the behavior of a gas in a closed system. They conducted this experiment. 1. Remove the end cap from the tip of a 35-mL plastic syringe. 2. Remove plunger from the syringe and insert a small marshmallow into the syringe. 3. Place plunger back in syringe so the volume reading is approximately at the 15-mL mark. 4. Place a syringe tip cap over the tip of the syringe. 5. Pull the plunger out. What is the BEST description of what will happen when the plunger is pulled out? The marshmallow will expand because the volume A) inside the syringe has increased. As the pressure increased in the syringe the volume B) of the syringe and the marshmallow increased. The marshmallow expands because the volume has increased and the pressure inside the syringe has C) decreased. There is a direct relationship between volume and pressure so as the volume increases the pressure D) increases. The marshmallow shrinks.A 25-cm-diameter cylinder that is 36 cm long contains 60 g of oxygen gas at 20°C. For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Air in warmed tire. Part B How many oxygen molecules are in the cylinder? N = 1.1x1024 molecules Submit ✓ Part C Correct Here we learn how to find the number of molecules in the gas if we know its mass. What is the number density of the oxygen? Express your answer in molecules per meter cubed. n = 6.4x1025 m -3 Previous Answers Submit Previous Answers ✓ Correct Here we learn how to calculate the number density of the gas. Part D What is the reading of a pressure gauge attached to the tank? Express your answer with the appropriate units. Lo Submit μA P= 258467.84 Pa Previous Answers Request Answer ? X Incorrect; Try Again; 5 attempts remaining
- 17. The value of y with increase in the degree of freedom of an ideal gas a. Increases b. Decreases c. Remains constant d. All the aboveA 20-cm-diameter cylinder that is 40 cm long contains 60 g of oxygen gas at 20° C. For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Air in warmed tire. Part B How many oxygen molecules are in the cylinder? N 1.1x1024 molecules Submit Part C Correct Here we learn how to find the number of molecules in the gas if we know its mass. n = What is the number density of the oxygen? Express your answer in molecules per meter cubed. Previous Answers Submit Part D 17 ΑΣΦ Request Answer ? What is the reading of a pressure gauge attached to the tank? Express your answer with the appropriate units. m -3A cylindrical tank has a tight-fitting piston that allows the volume of the tank to be changed. The tank originally contains 0.100 m³ of air at a pressure of 3.30 atm You may want to review (Page) For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Volume of a gas at STP. Part A The piston is slowly pulled out until the volume of the gas is increased to 0.410 m³. If the temperature remains constant, what is the final value of the pressure? p= Submit V—| ΑΣΦ Provide Feedback A Request Answer → ? atm
- 6. As shown in Figure 3, two flasks are connected by initially closed stopcock. One flash contains krypton gas at 500 mmHg, while the other contains helium at 950 mmHg. The Krypton Helium 250 em 500 mmHg 450 cm³ 950 mmltg stopcock is now opened so that the gasses mix. What is the final pressure in the system? Assume constant temperature.2. A balloon with a volume of 2.0 L is filled with a gas at 3 atmospheres. If the pressure is reduced to 0.5 atmospheres without a change in temperature, what would be the volume of the balloon? 3. A gas exerts a pressure of 3 kPa on the walls of container 1. When container 1 is emptied into a 10-liter container, the pressure exerted by the gas increases to 6 kPa. Find the volume of container 1. Assume that the temperature and quantity of the gas remain constant.A rigid container holds 3.20 mol of gas at a pressure of 1.10 atm and a temperature of 30.0°C.