Answer:
not sure if this helps but
Answer:
a) Internal energy
Explanation:
As we know that internal energy is a point function so it did not depends on the path ,it depends at the initial and final states of process.All point function property did not depends on the path.Internal energy is a exact function.
Work and heat is a path function so these depend on the path.They have different values for different path between two states.Work and heat are in exact function.
We know that in ir-reversible process entropy will increase so entropy will be different for reversible and ir-reversible processes.
Answer:
R= 1.25
Explanation:
As given the local heat transfer,

But we know as well that,

Replacing the values

Reynolds number is define as,

Where V is the velocity of the fluid and \upsilon is the Kinematic viscosity
Then replacing we have



<em>*Note that A is just a 'summary' of all of that constat there.</em>
<em>That is
</em>
Therefore at x=L the local convection heat transfer coefficient is

Definen that we need to find the average convection heat transfer coefficient in the entire plate lenght, so

The ratio of the average heat transfer coefficient over the entire plate to the local convection heat transfer coefficient is

Answer:
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