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- Problem 1: Answer the following questions using the table to the right. Medium Gases at 0 °C, 1 atm Air Carbon dioxide Hydrogen Oxygen 1.000293 1.00045 1.000139 1.000271 Liquids at 20 °C Benzene Carbon disulfide Carbon tetrachloride Ethanol Glycerine Water, fresh 1.501 1.628 1.461 1.361 1.473 1.333 Solids at 20 °C Diamond Fluorite Glass, crown 2.419 1.434 1.52 Glass, flint |Ice (at 0 °C) Polystyrene Plexiglas Quartz, crystalline Quartz, fused Sodium chloride 1.66 1.309 1.49 1.51 1.544 1.458 1.544 Zircon 1.923 Part (a) Calculate the index of refraction for a medium in which the speed of light is 2.012 × 10°. Numeric : Anumeric value is expected and not an expression. Part (b) Determine the most likely identity of the substance based on the table in the problem statement. MultipleChoice : 1) Carbon tetrachloride 2) Diamond 3) Ethanol Sodium chloride 5) Plexiglass 6) Water, fresh 7) Glycerine 8) Polystyrene 9) Glass, crown 10) Glass, flint2. Boyle's Law states that when a sample of gas is compressed at a constant temperature, the pressure P of the gas is inversely proportional to the volume V of the gas. (That is: at a constant temperature, the equation P = c. 1 holds, for some constant c.) V (Note: The standard units of volume are cubic meters, m³, and the standard units of pressure are Pascals, Pa, or kiloPascals, kPa.) 3 (a) Suppose that the pressure of a sample of air that occupies 0.106 m³ at 25°C is 50 kPa. Write V as a function of P. (b) Calculate dV dP when P = 50 kPa. What is the meaning of the derivative? What are its units?1. Given 14.00 L of a gas at a pressure of 5.10 atm, what will the volume be if I increase the pressure to 10.50 atm while keeping the temperature constant? 2. Given an initial pressure of 500. atm and a temp. of 150C, what will the pressure be if I increase the temp. to 275⁰C, while keeping the volume constant? 3. Given an initial volume of 20.5 L and a temp. of 50.0 ⁰C, what will be the new volume if the temp. increases to 100 ⁰C, while keeping the pressure constant?
- 2.A liquid in a tube has a mass m and a volume V. If the liquid density is 3.00 grams/L and its volume is 9.00 L then what is its mass? a. 18.0 grams b. 0.333 gram c. 333 grams d. 3.00 grams e. 27.0 grams1. Suppose the amount of air in a person's lungs is 2.2 L, Calculate the number of moles of air molecules in the person’s lungs when the pressure there is atmospheric pressure. Note that the air is at 37.0°C (body temperature). 2. An expensive vacuum system can achieve a pressure as low as 1.05 × 10-7 Pa at 20°C, How many atoms are there in a cubic centimeter at this pressure and temperature?