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Tems11 [23]
3 years ago
11

What will the sun become when it dies

Chemistry
1 answer:
Nina [5.8K]3 years ago
5 0

Answer:

It will become a red giant

Explanation:

When the sun runs out of its hydrogen fuel and the hydrogen atoms are combined together to make helium atoms, it expands into a red giant, which is made up of helium atoms and gases.

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2 years ago
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If a system performs 147 kJ of work while receiving 47 kJ of heat, what is change in its internal energy?
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Answer:

-100 kJ

Explanation:

We can solve this problem by applying the first law of thermodynamics, which states that:

\Delta U = Q-W

where:

\Delta U is the change in internal energy of a system

Q is the heat absorbed/released by the system (it is positive if absorbed by the system, negative if released by the system)

W is the work done by the system (it is positive if done by the system, negative if done on the system)

For the system in this problem we have:

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So , its change in internal energy is:

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3 years ago
When the metal was placed in the calorimeter, its temperature dropped to the equilibrium temperature. Calculate the change in te
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Answer:

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Explanation:

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What is true of elements in a period on the periodic table?. (Points : 3). They have different properties that repeat across the
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3 years ago
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