II. Statement Analysis. Read and analyze the following problems. Choose the correct letter corresponding to your answers Choose: A-if statement I is TRUE, but statement II is FALSE B- if statement I is FALSE, but statement Il is TRUE C- both statements are TRUE D- both statements are FALSE Krypton gas (Kr) has a greater average molecular speed than methane gas (CH4) at 25 degrees Celsius. In a container containing a mixture of O2 and He gas, if there is a small hole on the side of the container, O2 is lost faster than He.
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- Consider an ideal gas with an absolute temperature of ?1.T1. To what temperature would the gas need to be heated to double its pressure? Express the answer in terms of ?1.T1. ?2= Consider an ideal gas with a volume of ?1.V1. To what volume would the gas need to be compressed to double its pressure? Express the answer in terms of ?1.V1. ?2=V2=Q 2: a- If you had 0.2 kg of helium, how many helium atoms would you have? b- If you had 10 dozen helium atoms, what would be their mass? c- What is the mass of one helium atom? d- What is the mass of 2.0 moles of helium atoms?I. Solve the following problems by introducing variable/s and formulating appropriate equation/s. 1. Three painters, Mike, Dan and Katy, working together can paint the exterior of a house in 10 hours. Dan and Katy together have painted a similar house in 15hours. One day, all three worked on this same kind of house for 4 hours, after which Katy left. Mike and Dan required 8 more hours to finish. Assuming no gain or loss in efficiency, how long should it take each person to complete such job alone? 2. The sum of three numbers is 108. The sum of 1/3 the first, 1/4 the second, and 1/6 the third is 25. Three times the first added to four times the second and six times the third is 504. Find the numbers. 3. 1. Mr. Cruz invested P100,000.00 part at 6% and the rest at 8%. How much should be invested at each rate so that the income from the 8% is twice the income from the 6% investment? 4. 2.Nine men agreed to rent a van for their trip to Sagada. Three of them backed out at the last minute. As…
- You are in charge of receiving a shipment of new packing (aka tower fill) for a benzene stripping tower at work (see figures on the following pages for an example schematic of a stripping tower and examples of tower fillI). The packing for this specific tower is small spheres, with a radius of 1.5 inches. What is the volume of one of the spheres in cubic feet? a. V = 1).14 in3 •T- L53. 14.13717 The volume of the entire tower is 1000 ft3, and 40% of that volume must be filled with packing material. The rest of the volume is needed for distributors, supports, mist eliminators, and other equipment. b. What is the total volume of packing spheres needed? Gor is for C. Approximately how many packing spheres are needed for the tower? You receive the order of packing material and count five crates, each 4ft x 4ft x 4ft. Did you receive the full order? How do you know?Unpredictable fluctuations in temperature can cause the measurements to be described in terms of (Accuracy, Precision) as : A. Figure A B. Figure B C. Non of them ACharle's Law states that for a given mass of a gas at constant pressure, the volume is directly proportional to its thermodynamics temperature. A certain gas has a volume of 2.25 L at a temperature of 320K. a. Determine the constant of proportionality. b. Determine the volume of the gas at a temperature of 420K. c. Determine the temperature of the gas at a volume of 2.615 L
- I5 a. Materials science and engineering is a discipline that deals with all kinds of materials and their applications. But most importantly, it is about the structure-property-process relations, i.e. how each of them affects others and vice versa. Give an example to illuminate this relation and its importance. b. We learned that there are at least four types of structures that materials science and engineering deal with and each of them is characterized by a specific length scale, i.e. the basic structure unit has a different size. List those units and also their characteristic sizes.Learning Goal: To understand the meaning and the basic applications of pV diagrams for an ideal gas. As you know, the parameters of an ideal gas are described by the equation PV = nRT, where p is the pressure of the gas, V is the volume of the gas, n is the number of moles, R is the universal gas constant, and I is the absolute temperature of the gas. It follows that, for a portion of an ideal gas, PV = constant. pV T One can see that if the amount of aas remains Figure ЗРО 2po Po 51 Vo 6 2V 3V < 1 of 1 V A W = 2po Vo Submit ✓ Correct ▼ Part D Previous Answers Calculate the work W done by the gas during process 1-3-6. Express your answer in terms of po and Vo. W = 1 1 119225 Templates Symbols undo redo reset keyboard shortcuts ΑΣΦΑ / Submit Request Answer Part E Complete previous part(s) Part F Complete previous part(s) Part G Complete previous part(s) ! L (Learning Goal: To understand the meaning and the basic applications of pV diagrams for an ideal gas. As you know, the parameters of an ideal gas are described by the equation PV = nRT where p is the pressure of the gas, V is the volume of the gas, 12 is the number of moles. R is the universal gas constant, and T is the absolute temperature of the gas. It follows that, for a portion of an ideal gas, constant. One can see that, if the amount of gas remains constant, it is impossible to change just one parameter of the gas: At least one more parameter would also change. For instance, if the pressure of the gas is changed, we can be sure that either the volume or the temperature of the gas (or, maybe, both!) would also change. To explore these changes, it is often convenient to draw a graph showing one parameter as a function of the other. Although there are many choices of axes, the most common one is a plot of pressure as a function of volume: a pV diagram. pV In this problem, you will…
- You are modeling the concentration of a drug in a person's blood after they take one pill. We assume that after they take the pill the drug enters their blood effectively instantaneously. The drug has first order elimination kinetics. Complete parts (a) and (b). (a) Explain why the concentration of drug in their blood satisfies a differential equation = - k, c with c(0) = cn. Choose the correct answer below. O A. The differential equation for a drug with first order elimination kinetics is = A(t) - ko. As the drug enters the blood effectively instantaneously. There is no further absorption dc dc = - ko. dt after time t= 0, so A(t) = 0. Thus, О в. The differential equation for a drug with first order elimination kinetics is = A(t) - k, c. As the drug enters the blood effectively instantaneously. There is no further absorption dc after time t=0, so A(t) = 0. Thus = -k,c. dt Oc. The differential equation for a drug with first order elimination kinetics is = A(t) - ko. As the drug enters…Please 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…1 The accepted density of water at room temperature is approximately 1.0 g/mL. Melody and Margaret were told by their professor to measure 7.0 mL of water, which should theoretically weigh 7.0 grams. They first measured the volume of water in a graduated cylinder to be 7.0 mL and then the students weighed the water and they obtained a mass of 6.85 grams. First, calculate the density of their sample of water and then calculate their percent error for density. 2. A science teacher tells her class that their final project requires the students to measure a specific variable and determine the velocity of a car with no more than 2.5% error. Jennifer and Johnny work hard and decide the velocity of the car is 34.87 meters/second. The teacher informs them that the actual velocity is 34.15 meters/second. Will Jennifer and Johnny pass their final project.