Calculate the mass of 1.35 moles of sodium chloride (NaCl).
1 answer:
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Answer:
(a) Heat transfer to the environment is: 1 MJ and (b) The efficiency of the engine is: 41.5%
Explanation:
Using the formula that relate heat and work from the thermodynamic theory as: solving to Q_out we get:
this is the heat out of the cycle or engine, so it will be heat transfer to the environment. The thermal efficiency of a Carnot cycle gives us:
where T_Low is the lowest cycle temperature and T_High the highest, we need to remember that a Carnot cycle depends only on the absolute temperatures, if you remember the convertion of K=°C+273.15 so T_Low=150+273.15=423.15 K and T_High=450+273.15=723.15K and replacing the values in the equation we get:
Answer:
53.32°C
Explanation:
Length of the aluminium wing = 35 m
Change in length of aluminium wing = 0.03 m
The linear expansion coefficient of aluminium
We know that change in length is given by
So
So final temperature