Answer:
the heat gained by the system (gas) is 60 J.
Explanation:
Given;
work done by the gas sample, W = 150 J
change in internal energy, ΔU = -90 J
Apply the first law of thermodynamic;
ΔU = Q - W
where;
Q is the heat gained by the system
From the equation above;
Q = ΔU + W
Q = -90 + 150
Q = 60 J
Therefore, the heat gained by the system (gas) is 60 J.
Answer:
A. It could be depleted quickly.
Explanation:
It's Non-renewable, meaning it's hard to get back quickly, and using it at a high rate makes it run out well.. quicker.
I'd say it was C. but normally it's caused by the movement of electrons and electrons are negative. so I'm not really sure about this one
Answer:
a) 95950 pascals
b) 137642.5 pascals
Explanation:
The absolute pressure (Pabs) on a fluid is:
(1)
With Pgauge the pressure due depth on the fluid and Patm the atmospheric pressure. Pgauge is equal to:
(2)
with ρ the fluid density, g the gravitational acceleration and h the depth on the fluid. Using (2) on (1) and solving for Patm:
b) Here we're going to use again (1) but now we have another value of density because it's other liquid, to know that value we should use the fact that specific gravity (S.G) for liquids is the ratio between fluid density and water density:
so:
The first one is C. Hope this helps!! If you need anymore help just message me and I will try to get back to you quickly and help in any way i can!
