Ok I have an idea, Mixing bicarb and vinegar produces sodium acetate solution in water. Concentrating this by boiling off the water and then maybe making a handwarmer type solution ... supersaturated sodium acetate solution and then cause it to crystalise to heat the water? Could it work using...
Ok so I have some vinegar and Bicarb and want to generate an exothermic reaction, but just mixing them produces CO2 in an endothermic reaction! How can I do this? Thank you.
I solved it, this is what I did:
From the temperature we know it's superhated steam so looking at the steam tables we can find it's specific volume, 1/Specific volume = Density, density * volume = mass
So now we have the mass of the steam in the system.
Now mass / final volume =...
My work is wrong, it gives me the wrong answer.
P1V1=nRT1 / P2V2=nRT2
P1V1/P2V2 =T1/T2 T2 = T1P2V2 / P1V1 and I get T2= 1146 degrees C which is Slightly too high.
Homework Statement
A heat pump takes heat from a hot resevoir and dissipates heat to a cold one. Both resevoirs are equal mass and specific heat capacity. Show that as the heat engine does maximal work the final temp of the resevoirs = Tf = SQRT(TcTh)
Homework Equations
Qin = Wout +...
Homework Statement
Ok the problem I have been set has a frictionless piston containing steam at 200kpa at 200 degrees c and it is originally at 0.5m^3. It has a linear spring above it just touching and exerting no force. Heat is added and the gas expands pushing the cylinder up and causing the...
Ok please can someone help or at least point me in the right direction with this question please?
I have air flowing through a pipe which is heated to 477 degrees via burners on the outside. The pipe itself is heated to 550 degrees and there is a thermocouple inside the air flow. However, the...
I have a question about curry sauce. I've had to calculate heat transfer rate which was 109.6KW to heat the sauce to 98 degrees in 60 mins... also the sauce is heated by condensing steam at 105 degrees and i worked out that the pressure needed for this is 20.973kpa
Now i have to work out the...
It says the temperature of petrol is monitored by a thermocouple in the flow, so I'm guessing pipes?
How did you get your Re at that value? Have i used the wrong values to calculate it?
Thank you for your help
Ok it's my first time here and I was hoping to get some help on some questions I have been given. I am a first year chem eng and I'm finding the work pretty hard so any help at all will be useful, thanks.
I need to find the convective heat transfer coefficient, h for petrol using this...