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- How many atoms of Oxygen gas fill a cubic box of length 30.0 cm at 20.0ºC and 1.013 x 105 Pa? O 6.76x1023 atoms b. '6.76x1024 atoms 9.9x1024 atoms Od 9.9×1030 atomsQ 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?Give the fbm of the following quantities of wood: a. 800 lineal ft of 3⁄4 x 8 in.b. 15 pieces of 2 × 4 from 12 ft 0 in. to 12 ft 11 in. in lengthc. one post 10 ft long, 14 × 14 in. in cross section
- A. 0.80 m³ D. 7.0 m³ B. 1.25 m³ E. 11 m³ C. 1.9 m³ F. none of the above 1--1 NRDHW A helium-filled balloon has volume 3.5_m³, temperature 21.6°C, and pressure 1 atm while at sea level. If the balloon rises to 27000 ft, where the temperature is 5.1°C and the pressure is about 1/3 of its sea-level value, then find the new volume of the balloon. 7. A. 6.873 m³ D. 14.73 m³ B. 9.912 m³ E. 9.869 m³ C. 15.41 m³ F. 13.31 m³ 1--1 [carpet-6] MXJWA A 4.2 L volume of neon gas (Ne) is at a pressure of 4.1 atm and a temperature of 460 K. The atomic mass of neon is 20.2_g/mol, and the ideal gas constant is R = 8.314.J/mol K. The mass of the neon gas is closest to10:55 > t.myexams.unisa.ac.za MENU E Frag question A. 5.0 x 108 ft³ B. 6.0 x 108 ft³ C. 8.6 x 108 ft³ D. 2.1 x 108 ft³ E. 4.8 x 108 ft³ ||| Vol) 4G LTE2 T The largest building in the world by volume is the Boeing 747 plant in Everett, Washington. It measures approximately 650 m long, 710 yards wide, and 110 ft high. What is its volume in cubic feet? O 47 71% < myExamsConsider 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=
- 3.5 kilograms of water in a container have a pressure of 100 kPa and temperature of 150oC. What is the volume of this container? Please give your answer in m3. Use two decimal places in your final answer. Thanks2. Gas volume in liters vs. gas pressure in atmospheres Volume (L) Pressure (atm) 5.0 6.35 10.0 16.7 25.0 10.0 8.0 5.0 3.0 2.0 a. What type of relationship does this graph represent (Direct, Indirect, other)? b. What will be the pressure (atm) when the gas volume (L) is: (1) 7.5 L_ 7ahm (2) 4.0 L (3) 2.5 L What will be the volume (L) of the gas when the pressure (atm) is: C. (1) 15 atm (2) 8 atm (3) 20 atm Cairte Page 10 of 12 Lab 2What is the magnetic field at the origin (point P) due to the two current carrying wires 52 2 illustrated below? Use sin(45°) = cos(45°) = 12 = 8A 1₁ = 12A 11 (x P y 1m x I 1m X 140 and =1×10¹ Tm/A 4π
- 2. 1.5kN H Vo 1.MN 750N pmb Yp = - Gy CoyQUESTION 15 The volume of an automobile tire is 2.5 x 10 m3, the pressure of the air in the tire is 2.5 atm and the temperature is 25C . what is is the mass of air in grams ? The mean molecular mass of air is 29g. 1 atm = 1.01 x 105 Pa Calculate to 2 decimals. Chck Save and Submit 10 soee and submit. Click Save AL Answers to save all answers. Save All Answe 76 F Clear0. The coffee's temperature is changing at a rate of r (t) = -8(0.8')'C per minute, with t in minutes. Estimate the coffee's temperature A cup of coffee at 90 C is put into a 20°C room when t = 10. when t Round your answer to two decimal places.