Substance A has twice the specific heat capacity as substance B. If 1000 J of heat are added to 1.0 kg of each substance, compar
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Answer:
0.10839 m
Explanation:
= Atmospheric pressure = 1 atm = 101325 Pa
= Total pressure at bottom of mecury = 1.2 atm
g = Acceleration due to gravity = 9.81 m/s²
h = d = Depth of mercury
= Density of mercury =
= Density of water =
Pressure at the bottom is of the cylinder is given by
Pressure at the bottom of mercury is
The depth of the mercury is 0.10839 m
To solve this problem it is necessary to apply the concepts of heat change and thermal efficiency.
The heat rate can be expressed under the function
Where,
m = Mass
Enthalpy at each state
Our values are given as,
From the tables of Enthalpy of Water at 200°C (Saturated liquid state)
At the same time for 80°C
Applying the equation of Heat,
Replacing,
Therefore the efficiency would be
Therefore the actual thermal efficiency of the turbine in percent is 0.0579.