a) 
For a gas transformation occuring at a constant pressure, the work done by the gas is given by
where
p is the gas pressure
V_f is the final volume of the gas
V_i is the initial volume
For the gas in the problem,
is the pressure
is the initial volume
is the final volume
Substituting,
b) 
The heat absorbed by the gas can be found by using the 1st law of thermodynamics:
where
is the change in internal energy of the gas
Q is the heat absorbed
W is the work done
Here we have
So we can solve the equation to find Q:
And this process is an isobaric process (=at constant pressure).
Answer:
The angle of refraction is option b: 17°.
Explanation:
We can find the angle of refraction by using Snell's law:
Where:
n₁: is the index of refraction of the medium 1 (air) = 1.0003
n₂: is the index of refraction of the medium 2 (diamond) = 2.42
θ₁: is the angle of incidence = 45°
θ₂: is the angle of refraction =?
Hence, the angle of refraction is:
Therefore, the correct option is b: 17°.
I hope it helps you!
Answer:
False
Explanation:
Density is a physical property of matter.
<span>Free electrons may be transferred between bodies by "Contact Action"
When positively charged body comes close to a negatively charged body, then electron flows from positively to negatively charged body
In short, Your Answer would be Option B
Hope this helps!</span>
