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Molecular Physics | Thermodynamics
A hill that has a 12.0% grade is one that rises 12.0 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such hill inclined above the horizontal
Molecular Physics | Thermodynamics
A 0.5kg piece of metal (c = 600/kgk) at 300 degreees celsius is dumped into a large pool of water at 20 degree celsius. Assuming the change in temperature of water to be negligible, calculate the overall change in enthropy for the system.
Molecular Physics | Thermodynamics
a0.5kg piece of metal (c = 600/kgk) at 300 degreee celcius is dumped into a large pool of water at 20 degree celsius. assuming the change in temperature of water to be negligible, caculate the overall change in enthropy for the4 system
Molecular Physics | Thermodynamics
If the mass of one litre of a gas at 273k and pressure 760mm/ Hg equals 5.236gm, calculate the mass of one mole of that gas.
Molecular Physics | Thermodynamics
How much vacuum needed to boil water at 65°C? How many Joules we need to evaporate one gram of water (if the water is at 65°C and under vacuum)? Please supply the equations/formulas/calculation, if it is possible.
Molecular Physics | Thermodynamics
Would the reversal potential (Erev) increase if ions flow out of the membrane to the outside environemnt of neurons, according to the Nernst equation?
Molecular Physics | Thermodynamics
What is a better definition of reversal potential (Erev) of an ion?
1) It is the membrane potential where net flow of 1 or more species of ion is 0
2) The net flow of ions stops in both directions.
* this is a past exam qn and there is only 1 correct answer.
1) It is the membrane potential where net flow of 1 or more species of ion is 0
2) The net flow of ions stops in both directions.
* this is a past exam qn and there is only 1 correct answer.
Molecular Physics | Thermodynamics
A certain fluid at 10bar is contained in a cylinder behind a piston, the initial volume being 0.05m^3. Calculate the work done by the fluid when it expands reversibly: 1. According to a linear law to a final volume of 0.2m^3 and a final pressure of 2 bar. 2 according to a law, p=(A/V^2)-(B/V), to a final volume of 0.1m^3 and a final pressure of 1bar, where A and B are constants. Sketch the processes on a P-V diagram.
Molecular Physics | Thermodynamics
At what temperature will the root-mean-square speed of oxygen molecules have the value of 640 m/s? 1 kilomole of oxygen has a mass of 32kg.
Molecular Physics | Thermodynamics
an ungraduated thermometer reads 7.5cm in pure melting ice and 23.5cm in stream at 100degrees celcius. what is the reading on this thermometer when actual temperature is 65 degrees celcius
