What happens when an electric field is applied to a very polar molecule?

1 answer:

5 0

The polar molecules possess the permanent dipole moments caused by slight charge separation in the molecule. In the case of non-polar molecules, the induced electric dipoles are created by an applied electric field causing the slight separation of positive and negative charges in the molecules. The induced electric dipoles are much weaker than permanent electric dipoles.

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The air in a living room has a mass of 60 Kg and a specific heat of 1,020 J/kg°C. What is the change in thermal energy of the ai

arlik [135]

Answer:

Q = 306 kJ

Explanation:

Given that,

Mass, m = 60 kg

Specific heat, c = 1020 J/kg°C

The temperature changes from 20°C to 25°C.

Let Q be the change in thermal energy. The formula for the heat released is given by :

$Q=mc\Delta T$

Put all the values,

$Q=60\times 1020\times (25-20)\\\\Q=306000\ J\\\\or\\\\Q=306\ kJ$

So, 306 kJ is the change in thermal energy.

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3 years ago

Compare rutherford's expected outcome of the gold-foil experiment with the actual outcome.

iragen [17]

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3 years ago

Hafnium has six naturally occurring isotopes: 0.16% of 174Hf, with an atomic weight of 173.940 amu; 5.26% of 176Hf, with an atom

ser-zykov [4K]

Answer:

177.277amu

Explanation:

the total occuring isotopes for Hafnium is =6.

First isotope had an atomic weight of 173.940amu