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3 years ago

How much energy is released when a proton combines with a deuterium nucleus to produce 3He?

Physics

1 answer:

slava [35]3 years ago

6 0

Answer:

E = 7.99 *10^{-13} J

Explanation:

the given reaction is

$_1 H^1 + _1 H^2 = _2 He^3$

we know that energy is given as $E = \Delta mc^2$ $E = (m_1 H^1 + m_1 H^2 - _2 He^3)c^2$

where

m_1 H^1 is mass of proton = 1.672622 *10^{-27}

m_1 H^2 is mass of deuterium = 3.344494 *10^{-27}

m_2 H^3 is mass of He = 5.008234 *10^{-27}

E = [1.672622 *10^{-27} + 3.344494 *10^{-27} - 5.008234 *10^{-27} ] *(3*10^8)^2

E = 7.99 *10^{-13} J

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${\huge{\fcolorbox{yellow}{red}{\orange{\boxed{\boxed{\boxed{\boxed{\underbrace{\overbrace{\mathfrak{\pink{\fcolorbox{green}{blue}{Answer}}}}}}}}}}}}}$

0.72 liters

Explanation:

$\sf Volume \: before \: heated(V_1) = 0.5l \\ \\ \sf Temperture \: before \: heated(T_1) = 20{ \degree} C = 20 + 273.15 = 293.15K \\ \\ \sf Volume \: after \: heated(V_2) = ? \\ \\ \sf Temperature \: after \: heated(T_2) = 150{ \degree}C = 150 + 273.15 = 423.15K$

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$\sf Now \: sustituting \: the \: values$

$\sf \longmapsto \frac{0.5}{293.15} = \frac{V_2}{423.15} \\ \\ \\ \sf \longmapsto \frac{0.5 \times 423.15}{293.15} = V_2 \\ \\ \\ \sf \longmapsto \frac{211.575}{293.15} = V_2 \\ \\ \\ \boxed {\longmapsto 0.72l = V_2}$

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2 years ago

Two students, Student X and Student Y, stand on a long skateboard that is at rest on a flat, horizontal surface, as shown. In or

OleMash [197]

Answer:

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Explanation:

The claim is correct because Student Y can apply a force that is greater in magnitude than the frictional forces that are exerted on the student-student-skateboard system

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4 years ago

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What is the weight of a 4.5 kg mass on Earth?

swat32

Answer:

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Explanation:

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3 years ago

In one of the classic nuclear physics experiments at the beginning of the 20th century, an alpha particle was accelerated toward

Vladimir79 [104]

Answer:

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Explanation:

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$KE=U=\frac{kqq'}{r}\\\\$

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$\to r=\frac{kqq'}{KE}\\\\$

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3 years ago

The metallic elements which all react in water are found in the:

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4 years ago

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