Answer:
<em>55%</em>
Explanation:
hot reservoir = 1100 K
cold reservoir = 500 K
<em>This is a Carnot system</em>
For a Carnot system, maximum efficicency of the system is given as
Eff = 1 -
where Tc = temperature of cold reservoir = 500K
Th = temperature of hot reservoir = 1100 K
Eff = 1 - 0.45 = 0.55 or<em> 55%</em>
Answer: c fine sand aggregate, portland cement,fine sand
General solution
in equation (iii)
Therefore,