ok so...
delta Q = (909kg) * (333.55) = 3.0*10^5
so then do i plug this number in this equation --> COP= Q_L / W --> COP = Q_L / Q_H -Q_L ??
am i on the correct path??
wait.. heat of fusion which is Lf = mL = 333.55 ... how does this help me solve for the answer?
what if i use deltaQ = mCdeltaT ?
delta Q = 909kg * 1cal/g C * ((40+273)-(20+273)) ??
does this look right? or am i totally off?
thanks for point that out! i fixed it! now its a three step cycle.
But i still don't know how to figure this problem out!
please help anyone! pleaseeeeeeeeee!
Homework Statement
A monatomic ideal gas has pressure p_1 and temperature T_1. It is contained in a cylinder of volume V_1 with a movable piston, so that it can do work on the outside world.
Consider the following three-step transformation of the gas:
1. The gas is heated at constant volume...
Homework Statement
PROBLEM:
Refrigeration units can be rated in "tons". A 1-ton air conditioning system can remove sufficient energy to freeze 1 British ton (2000pounds) = 909 kg) of 0 degree C water into 0 degree C ice in one 24-h day.
QUESTION:
If, on a 40 degree C day, the interior...
im working on the same problem now but I am still a little confused. so what is the answer to part a,b,c.
part a = 3/2(Ap1-p1)V1 ?
part b = ??
part c = ??
im so lost! can anyone please help me? thanks a bunch!
im still confused. =( so what is the formula to figure out the temperature drop after 30mins? and are we suppose to use derivative to solve this problem? I am so sorry to bother you about this but I am really lost.
are we suppose to use this equation? ---> H = E/T
if so... what is H? E? T...
Homework Statement
A kid places a bottle of soda in a fridge and let's the temperature drop to 16K. What is the magnitude of its temperature change [Delta]T = 16 K in degrees Celsius?
Homework Equations
T=275K + deg cel
The Attempt at a Solution
16-273 = -257 degree Celsius...