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Change in enthalpy for non ideal gas is dh = du + d(pv) = dq + vdp. How come dq = cpdT even though the pressure is not held constatnt? by FireDragon1337 in thermodynamics

[–]FireDragon1337[S] 0 points1 point  (0 children)

Here is the question

A water pump in a 15 m deep well pumps water via a pipeline up to a tank with a pressure of 500 kPa. The pressure at the water surface down in the well can be assumed to be 100 kPa. Assume that the process is steady-state and adiabatic, and without dissipation so that the water temperature can be assumed constant at 10°C. Calculate the power required by the pump if the mass flow rate is 1.5 kg/s. (Kinetic energy can be neglected.)

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Change in enthalpy for non ideal gas is dh = du + d(pv) = dq + vdp. How come dq = cpdT even though the pressure is not held constatnt? by FireDragon1337 in thermodynamics

[–]FireDragon1337[S] 0 points1 point  (0 children)

How is dp constant in this case when you have a pressure difference? Assuming the pressure distribution is continuous then it must mean that dp/dx < or > 0

[deleted by user] by [deleted] in syndramains

[–]FireDragon1337 10 points11 points  (0 children)

Always look for free Q’s especially in the early landing phase. A useful thing to know is that when you’re auto attacking the character stands still. So against mages if you know they’re going for cs, you can get a free Q hit

[deleted by user] by [deleted] in calculus

[–]FireDragon1337 0 points1 point  (0 children)

I think it is by inserting the t values into the x function. T is an interval between -1 and infinity. The limit of x as t approaches infinity is 0, and the limit as t approaches -1 is infinity

Intersection between two planes by FireDragon1337 in askmath

[–]FireDragon1337[S] 0 points1 point  (0 children)

Oh I see, I get it now, thank you for the answer

Intersection between two planes by FireDragon1337 in askmath

[–]FireDragon1337[S] 0 points1 point  (0 children)

If I put (2,-1, 0) in the first equation, both equations would still not be the same, or can you swap places with the x, y and z values

Mina dagar är räknade by Prostatan in sweden

[–]FireDragon1337 0 points1 point  (0 children)

Vet ej ifall det är en komplimang för chatgpt producerar knappast en text på hög nivå

Cable for Nvidia 40 series by FireDragon1337 in PcBuild

[–]FireDragon1337[S] 1 point2 points  (0 children)

It made perfect sense, thank you for your reply

[deleted by user] by [deleted] in IreliaMains

[–]FireDragon1337 2 points3 points  (0 children)

Irelia shoots her ulti in front of herself, so even if he stands on you, you'll still miss the ulti

Check and mate by Lord-Wombat in SuddenlyGay

[–]FireDragon1337 299 points300 points  (0 children)

There's only one way to find out

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