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Gemiola [76]
4 years ago
5

How does the temperature of the samples change? Which way does the energy flow?

Physics
2 answers:
docker41 [41]4 years ago
8 0

If the samples are on the same planet and touching, then the hot one cools off and the cold one warms up. Energy flows from the hot one to the cold one until their temperatures become equal somewhere in the middle.

iogann1982 [59]4 years ago
3 0

Answer:    How does the temperature of the samples change?

As the temperature increases, the rate of reaction increases. Particles can only react when they collide. ... Increasing the temperature increases reaction rates because of the large increase in the number of high energy collisions. It is only these collisions that will produce the reaction. Low-temperature experiments prevent denaturation of samples. ... When the temperature of the protein water solution is reduced below the ... The FB peak position does not change but its intensity changes proportionally with variation of intensity of incident radiation.

Which way does the energy flow?    

Energy flow in ecosystem occurs by food chain from producer to consumers. ... Then energy is transfered from producers to consumers, called as heterotrophs. Primary consumers are called as herbivores. Herbivores are eaten up by secondary consumers, called as carnivores. Energy flow is always unidirectional. Energy flows progressively from one trophic level to another and cannot revert back. In most of the natural ecosystems, energy comes from the sun, it is trapped by producers and then pass on to successive trophic levels in the form of food.

Explanation:

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A manometer is a device similar to a barometer that can be used to measure the pressure of a gas trapped in a container. A closed-end manometer is a U-shaped tube with one closed arm, one arm that connects to the gas to be measured, and a nonvolatile liquid (usually mercury) in between.

Explanation:

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A maglev train can “float” because magnets in the bottom of the train and on the guideway...
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The velocity v of a particle moving in the xy plane is given by v = (6.0t -4.0t2 )i + 8.5j, in m/s. Here v is in m/s and t (for
atroni [7]

Answer:

Explanation:

Given

Velocity of the particle in vector form is given by

v=\left ( 6t-4t^2\right )\hat{i}+8.5\hat{j}

acceleration is rate of change of velocity thus acceleration is

a=\frac{\mathrm{d} v}{\mathrm{d} t}

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7 0
4 years ago
Consider two samples of gas. Sample A consists of n moles and is kept at temperature T in container of volume V. Gas B consists
MrRissso [65]

Answer: e. P/2

Explanation:

For ideal gases, we have the relation:

P*V = n*R*T

where:

n =  number of mols

R = Gas constant

T = temperature

V = volume

P = pressure.

We know that for sample A, we have n moles, a temperature T and a volume V, then the pressure of this sample will be:

Pa = (n*R*T)/V.

For sample B, we have:

n/2 moles, temperature T/2 and a volume V/2, then the pressure will be:

Pb = (n/2)*R*(T/2)*(2/V) = (n*R*T/V)*(2/4)

and:

(n*R*T/V) = Pa

Then we can replace it and we get:

Pb = (n*R*T/V)*(2/4) = Pa*(2/4) = Pa*(1/2) = Pa/2.

Then the correct option is e.

6 0
3 years ago
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