Answer:
Explanation:
a) Volume of the gas nRT / P
= 1,04 X 8.3 X 298 / 11 X 10⁵ m³
= 233.85 x 10⁻⁵ m³
= 233 x 10⁻² L
2.33 L
P₁V₁ / T₁ =P₂V₂/T₂
(11 X 2.33) / 298 = (1 X 24.2) / T
T = 281.37 K
= 8.37 degree
b ) w = p x change in volume
= 10⁵ x ( 24.2 - 2.33 ) x 10⁻³ J
= 21.87 X 10² J
2187 J
q = n x Cp x (25 - 8.37 )
= 1.04 x 35.66x 16.63 J
= 616.65 J
ΔU = Q - W
= 616.65 - 2187 J
= - 1570.35 J
=
=
Answer:
entropy increases when a glass of water is set in the sun until the water evaporates.
Hope it will help you :)
Answer:
The wavelength the student should use is 700 nm.
Explanation:
Attached below you can find the diagram I found for this question elsewhere.
Because the idea is to minimize the interference of the Co⁺²(aq) species, we should <u>choose a wavelength in which its absorbance is minimum</u>.
At 400 nm Co⁺²(aq) shows no absorbance, however neither does Cu⁺²(aq). While at 700 nm Co⁺²(aq) shows no absorbance and Cu⁺²(aq) does.
Answer:Kinetic floor tiles capture energy generated when people walk on them.
Explanation:
Answer:
convergent margins.
Explanation:
Mantle convection causes the phenomenon of plate tectonics on the earth surface.
From plate tectonics, we understand that the earth surface is broken into several giant slabs made up of the crust and upper part of the mantle. This is called the lithosphere. The lithosphere sits on the weak and plastic asthenosphere in the mantle.
The mantle is made up of series of convective cells through which hot, molten and lighter materials which are more buoyant rises up. They are then replaced by cold and denser materials. This system of exchange sets up a convection system which drives the overriding lithospheric plates.
The plates can collide with one another at convergent margins, some can move away from one another at divergent margins and some just slides past one another at transform margins.
A convergent margin is a destructive margin in which the lithosphere is destroyed either by collision or subduction.
