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3 years ago

Liquid nitrogen boils at –195.8°C. Express the boiling point of liquid nitrogen in kelvin

Chemistry

1 answer:

inessss [21]3 years ago

4 0

Answer:

$\boxed {\boxed {\sf 77.35 \ K}}$

Explanation:

The Celsius and Kelvin scales are used to measure the temperature of matter. Their scales and unit differences are the same (1 K increase = 1 °C increase), but they have different starting points.

So, the conversion is quite simple and only requires addition because of the different starting points. The formula is:

$T_K = T_C+ 273.15$

The boiling point of liquid nitrogen is -195.8 °C. We can substitute this value into the formula.

$T_K= -195.8 + 273.15$

$T_K= 77.35 K$

The boiling point of liquid nitrogen is 77.35 Kelvin.

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3 years ago

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Elodia [21]

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Explanation:

1) For alpha-decay

In this process, alpha particle is released.

Equation follows:

$_{100}^{257}\textrm{Fm}\rightarrow _{98}^{253}\textrm{Cf}+_2^4\alpha$

The nuclide formed is $_{98}^{253}\textrm{Cf}$

2) For beta-minus decay

In this process, a neutron is converted into a proton and an electron.

Equation follows:

$_{98}^{253}\textrm{Cf}\rightarrow _{99}^{253}\textrm{Es}+_{-1}^0\beta$

The nuclide formed is $_{99}^{253}\textrm{Es}$

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