Thermodynamics

[BlackHawk_Down]

1.)100 g of water are mixed with 150 g of alcohol (w= 790kg/m3 ). What is the specific gravity of the resulting mixtures, assuming the fluids mixed completely?

2.)A certain location has barometric reading of 720 mm Hg and the gravitational acceleration is 9.2 m/s2 . If the temperature of mercury is 9 degree Celsius at which density is 12,850 kg/m3, compute the atmospheric pressure.

3.)In a certain steam plant, the turbine develops 1000 KW. The heat supplied to the steam in the boiler is 2800 KJ/kg, the heat rejected by the system to the cooling water in the condenser is 2100 KJ/kg and the feed pump work is 5KW. Calculate steam flow in kg/sec.

[tormentor]

have you tried solving these problems or are you just lazy ?

Edited August 3, 2013 by tormentor

[BlackHawk_Down]

have you also tried solving these problems or are you just lazy ?...Mr. Lepton

I just want to know if all the members here are very kind or not, even giving a simple explanation not an actual answer.

K la...thank you Bro

[swansont]

tormentor's inappropriate comment aside, you need to show that you have somehow tried to solve the problems. Having someone do the work for you is a poor way of learning.

[gabrelov]

1.) spec grav = density of substance over density of water (dimensionless)

2.) Use equation of state for ideal gas.

3.) Q = delta U + work

Additional

4) Newton's laws of motion

 

Now study this things I mentioned and you will get the answer

 

This are the basics of thermodynamics you should now this and study this well to be able to cope with much advance topics.

Study calculus very well specially integral since some problems have equation given and you will need to integrate correctly to get the answer. As our instructors remind us learn the basics and don't memorize formula but study where they came from so in case you forgot a formula you can derive.

Edited August 6, 2013 by gabrelov