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2 years ago

6

3. (a) Sate any three properties of an ideal gas as assumed by the kinetic theory of gas.

1 answer:

Aliun [14]2 years ago

4 0

Explanation:

The simplest kinetic model is based on the assumptions that: (1) the gas is composed of a large number of identical molecules moving in random directions, separated by distances that are large compared with their size; (2) the molecules undergo perfectly elastic collisions (no energy loss) with each other and with the ...

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Which of the following is a correct<br> definition of the word "contingencies"?

Elden [556K]

Answer:

I already told ya

Explanation:

i got brainly so i could learn

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2 years ago

You work for the city water department and need to pump 3400 liters/minute of water from a tank at ground level into a vented (i

umka21 [38]

Answer:

$P_E=46.2778\ kW$

$v=1.804\ m.s^{-1}$

Explanation:

Given:

flow rate of water, $\dot{V}=3400\ L.min^{-1}=3.4\ m^3.min^{-1}$

<em>∵Density of water is 1 kg per liter</em>

∴mass flow rate of water, $\dot{m}=3400\ kg.min^{-1}$

height of pumping, $h=75\ m$

efficiency of motor drive, $\eta=0.9$

diameter of pipe, $D =0.2\ m$

<u>Now the power required for pumping the water at given conditions:</u>

$P=\dot{m}.g.h$

$P=\frac{3400}{60} \times 9.8\times 75$

$P=41650\ W$

<u>Hence the electric power required:</u>

$P_E \times \eta=P$

$P_E \times 0.9=41650$

$P_E=46.2778\ kW$

<u>Flow velocity is given as:</u>

$v=\dot{V}\div a$

where: a = cross sectional area of flow through the pipe

$v=\frac{3.4}{60}\div (\pi.\frac{0.2^2}{4} )$

$v=1.804\ m.s^{-1}$

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3 years ago

The movement of the liquid in a thermometer shows changes in temperature. An increase in temperature indicates the molecules in

ahrayia [7]

Answer:

The movement of the liquid in a thermometer shows changes in temperature. An increase in temperature indicates the molecules in the liquid *

Explanation:

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3 years ago

Please solve it ,,,,,,,,,,................................

fredd [130]

Answer:

the distance covered by the body in 5th second =u+a(n- 1/2)=7+4(5- 1/2)

=7+4×9/2

=7+18

=25m

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3 years ago

Which type of change results in a new substance being produced?

malfutka [58]

Answer:

Chemical

Explanation:

A chemical change is also known as chemical reaction. It is a change that results to the formation of a new substance.

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3 years ago

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