Copy of 5AL Lab 2 Assignment Submission Template - W24

The saturated vapor pressure of mercury is 0.0020 mmHg at 300 K and the density of air at300 K is 1.18 g L−1. ]ag Calculate the concentration of mercury vapor in air in mol L−1. ]bg Whatis the number of parts per million ^ppmh by mass of mercury in air?

(a) Suppose a meter stick made of steel and one made of invar (an alloy of iron and nickel) are the same length at 0ºC . What is their difference in length at 22.0ºC ? (b) Repeat the calculation for two 30.0-m-long surveyor’s tapes.

What is the standard unit of temperature in the SI? (Do not abbreviate; for example gram not g.)

P P= 19399 xNlm, T=216-650 k° f3:1n93x0 kg|? +4 %3D M =1.4216 xio kglm.s at 12 km. Find P,P.T,M, a at 1I km.

Homepage - FIT с angman app.101edu.co Gmail Aktiv Chemistry X YouTube Type here to search Maps commonsearch X News Translate 4 O Write edit bar X D Paraphrasing Tool ... Determine the number of atoms in 57.0 grams of sulfur, S. (The mass of one mole of sulfur is 32.07 g.) Search // Purd x Question 31 of 35 Literature. hp

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Starting from the internal energy equation, using the relations for enthalpy h = e + p/p and hT = h + u?/2 for the total enthalpy, get the following energy equation. DhT др + div(kVT) + at a (Tij'u;) + pfiu; Dt

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Answer the following by filling the blank: During a bout with the flu, an 80-kg person ran a fever of 39 oC. Consider that the specific heat of any human body is 3470 J/kg K, how much energy does the body need to burn to reach the fever temperature? The answer (in fundamental SI unit) is ___________ (type the numeric value only, dont use scientific notation)

The pressure, P of an ideal gas, can be expressed as P = nRT/V where n is the number of moles, T is the temperature, V is the volume and R = 8.314JK^-1 mol^-1 is the ideal gas constant. a) Find the expression for deltaP in terms of deltan, deltaT and deltaV: deltaP = deltan + deltaT + deltaV b) Suppose that n = 1, V = 1m^3 and T = 300K initially. If n and V change to 9/5 and 7/10m^3 respectively, estimate the change in T(K) required to keep P constant.

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What must be the height of a 200mm diameter vertical pipe carrying hot liquid so that the surrounding area becomes 38degrees C? Note that the rate of convection is 6 KWatts and the surface of the plate is around 90degrees C. answer in meters. (3 decimal places)

#4. The rate of costing. of as dT dt where T = Q body fig. below, can be expressed = -k (T- Ta) : temperature of the body (ĉ). Te = temperature of the surrounding medium (2) and k = 4 proportiona- 2ty constant (per minste). Thus, this equation (Called Newton's law of Cooling) specifies that the vate of cooling is proportional to the difference in the temperature of the body and of the surrounding medium. a metal ball heated to 80 °C is dropped into water that is held constant at Ta = 20°C, the temperature of the ball changes. as in Time, min 0 5 10 15 20 25 T₁ °C 80 44.5 30.0 2411 21.7 2017 wtilize numerical differentiation to determine dI at each Value of time. plot dI Versus T-Ta and dt employ linear regression to ellalvate k. dt

How much energy (in J) is required to evaporate 25% of 4g of water currently at 100 oC? The answer (in fundamental SI unit) is ___________ (type the numeric value only, dont use scientific notation)

The tidal lung volume of human breathing, representing the amount of air inhaled and exhaled in a normal breath, is 500 cm³. (Assume atmospheric pressure.) (a) What is the number of molecules of air inhaled with each human breath when the air temperature is 25.0°C? molecules (b) If the molar mass of air is 28.96 g/mol, what is the mass (in g) of air molecules inhaled with each breath? (Assume the air temperature is 25.0°C.) g (c) It has been calculated that all of the air in Earth's atmosphere could be collected into a sphere of diameter 1,999 km at a pressure of 1.00 atm. What is the mass (in kg) of the air in Earth's atmosphere? (Assume the density of air used in this calculation was 1.225 kg/m³.) kg (d) If all 7 billion humans on Earth inhaled simultaneously, what percentage of the atmosphere would be inhaled during this process? (Assume the air temperature is 25.0°C everywhere on Earth.) %

Weight of the ozone layer 1.0p 1 Incredibly, the ozone layer in the upper atmosphere that protects us from the ultraviolet rays of the Sun varies somewhat but, on the average, would be less than one centimeter thick if it were brought down to sea level. Given that the density of ozone at sea level would be about 2.0 grams per litre, what is the total amount of ozone (in Tonnes) in the upper atmosphere when its sea-level thickness is 0.22 cm? Take the radius of the Earth to be 6400 km. (The volume of a thin skin around an object is the surface area of the object times the skin thickness.) Give your answer in gigatonnes, and do not specify units in the answer box. Answer Show feedback Updated just now 4

The tidal lung volume of human breathing, representing the amount of air inhaled and exhaled in a normal breath, is 500 cm3. (Assume atmospheric pressure.) (a) What is the number of molecules of air inhaled with each human breath when the air temperature is 27.0°C?

Dimensional formula for thermal conductivity is (here K denotes the temperature):   1) MLT–3 K–1 2) MLT–2 K–2 3) MLT–2 K 4) MLT–3 K