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Americo Powlowski

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Q: How much energy would be absorb as heat by 75g of iron when heated from 295K to 301K?
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What Volume of nitrogen is required to increase the pressure in a pipe 32865mm3 to 1 bar at sea level in 20 degrees c Workings would be helpful in laymans terms please?

1 bar is 100,000 pascals.I'm assuming you're working from a near-vacuum and initially at room temp.Also, I'm using what's called the ideal-gas equation. It is an approximation that works best for gasses at low pressures and high temperatures. The equation is:pV=nRTp is pressure (in pascals)V is volume (in meters cubed)n is the amount of a substance (in moles)R is a constant, 8.3145J/mol*KT is temperature (in Kelvin. room temperature is kelvin is about 295)If we try to solve for n now, we won't get it. We have another variable we need to take care of, T. So we...Use this other equation:(PV)/T of the initial state equals (pV)/T of the final state:p1*V1/T1=p2*V2/T2solve to T2:T2=(p2*V2*T1)/(p1*V1)Plug in values:T2=(100,000Pa*.000032865m^3*295K)/(1pa*.000032865m^3)which is saying that your new temp is 295000K (which is, like 600,000ºF)And that's where I thought about quiting.But no:I plugged this value into the initial equation: and got that 0.00000134 moles of Nitrogen.Nitrogen's molar mass is 14.0674 which means that:.00001877 grams of nitrogen are required.So, this is the long way. I didn't think to look up the density of Nitrogen at 1bar and see how much 32865 cubic millimeters of it would be.the density of nitrogen at 101321Pa is 1.251g/Lwhich is .000001251 g/mm^3multiply that by 32865 mm^3So, .04 grams of nitrogen!


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How much energy would be absorbed as heat by 75g of iron when heat from 295k to 301k?

o calculate the amount of energy absorbed by 75 grams of iron when it is heated from 295K to 301K, we need to use the specific heat capacity of iron. The specific heat capacity of iron is 0.45 J/g*K. We can use the equation: Q = m * c * delta T Where Q is the energy absorbed, m is the mass of the substance (in this case, 75g of iron), c is the specific heat capacity of the substance (0.45 J/g*K for iron), and delta T is the change in temperature (301K - 295K = 6K). Plugging in the values, we get: Q = 75g * 0.45 J/g*K * 6K = 21 J 𝓦𝓮𝓲𝓻𝓭 𝓣𝓮𝔁𝓽𝓱𝓽𝓽𝓹𝓼://𝔀𝔀𝔀.𝓭𝓲𝓰𝓲𝓼𝓽𝓸𝓻𝓮24.𝓬𝓸𝓶/𝓻𝓮𝓭𝓲𝓻/449013/𝓕𝓻𝓪𝓷𝓴𝓫𝓪𝓱𝓪𝓵𝓵𝓪/ So the 75 grams of iron will absorb 21 joules of energy as heat when it is heated from 295K to 301K.


What is 295 degrees kelvin in Fahrenheit?

295K = 71.3ºF


Can room temperature be 295k?

Yes - its 71 degrees F.


what mass of pentane gas C5H12 is contained in a 3.0L tank that has a pressure of 1.220 atm at 295K?

pentane


How do you convert 71.33 Fahrenheit into kelvin?

Use this equation to convert degrees Fahrenheit to Kelvin: [K] = ([°F] + 459.67) × 0.55671.33ºF = 295K


If you need to find the number of moles of air in a scuba tank filled to a pressure of 22,000 kPa at 295K, and the volume of the tank is 30 L, which equation would you use?

PV=nRT


How many mega ohms in an ohm?

A megohm is 1000 kilohms. So 295k is 0.295M


What has the author Joshua K McBee written?

Joshua K. McBee has written: 'Line-width temperature dependence of selected R and P-branch transitions in the vb3s fundamental of p16sOp12sCp32sS between 185K and 295K' -- subject(s): Atmospheric chemistry, Environmental aspects, Environmental aspects of Sulfides, Sulfides, Tunable lasers


Room temperature is usually considered to be 25 degrees Celsius what is that in kelvins?

Kelvin is the SI unit for temperature. Celsius is usually used in metric systems. 0 degree celsius is 273.15 Kelvin. Kelvin increases equally with celsius. So to convert celsius to kelvin, we just add 273.15 to celsius. The answer in Kelvin is 295.15


Why would a 97 suburban turn over fine but be hard to start seems short of fuel but runs fine after starting wondering about injectors?

I have that Suburban! 295K right? (That is what mine has and still kicking!) The fuel pump is going. You are getting some volume, but not enough. Mine went 4 months like that. Try this, turn the key from of to on about ten times without ever hitting the starter. On the next try, hit the starter. It will start right up. The pump is draining back because it is weak. The pump is in the tank, yes you need to drop it and whatever you do, do not get the $89 unit and autozone! I have a new fuel pump you can hear a block away. Spend the extra $20 and get it a NAPA


The typical thermodynamic efficiency of an OTEC installation running between surface water at 22 C and deep water at 14 C is about?

(1 - (287/295)) *100 = 2.711% efficiency. 273+14C = 287K 273+ 22C = 295K On Earth, it's more like 25C surface and 10C deep, ish, depending on where you are. In absolute (Kelvin) temperatures, that's 298K and 283K The Carnot efficiency (maximum possible efficiency) of this is 1 - 283 / 298 = 5% I met a guy years ago who reckoned he could get 3% real efficiency from his OTEC design. OTEC will always have extremely low efficiency. It relies for its success on the heat being free (it is) and on being able to shift vast amounts of ocean water around with minimal friction losses (that's a bit harder).


Is there a minimum salary a player can earn in the NFL?

In 2008, $295k In 2009, $310k In 2010, $325k In 2011, $340k In 2012, $355k The NFL Players Union and the NFL owner's usually construct a new "minimum salary" deal every 4 or 5 years. *** These numbers are accurate but are for players with zero years experience, i.e. rookies. The amounts go up with player experience, topping out at $845,000 in 2009 for players with 10 or more years experience. Also, unlike some or much of the money in the very high dollar contracts of the top players, none of this money is guaranteed. You have to play to get it. Here's the whole chart through 2010: Credited Seasons 2008 2009 2010 0 $295,000 $310,000 $325,000 1 $370,000 $385,000 $400,000 2 $445,000 $460,000 $475,000 3 $520,000 $535,000 $550,000 4-6 $605,000 $620,000 $635,000 7-9 $730,000 $745,000 $760,000 10+ $830,000 $845,000 $860,000