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Lelu [443]
4 years ago
14

Which of the following describes the melting point of a solid?

Chemistry
2 answers:
yKpoI14uk [10]4 years ago
8 0

The melting point (or, rarely, liquefaction point) of a solid is the temperature at which it changes state from solid to liquid at atmospheric pressure. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at standard pressure.

valina [46]4 years ago
3 0

Answer:

The temperature at which the kinetic energy overcomes the intermolecular forces

Explanation:

Apex

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Is filling up beakers with 200ml of water bad
iogann1982 [59]

Answer:

No

Explanation:

Filling a beaker 200ml of water is not bad because Each beaker's capacity may vary according to the size of different beaker.

6 0
4 years ago
Natural gas is a A. type of solar energy. B. type of electricity. C. nonrenewable resource. D. renewable resource.
rosijanka [135]

Answer:

C

Explanation:

Natural gas is a non renewable source of energy since it is a type of fossil fuel so it is a non renewable resource.

4 0
3 years ago
A 126.1-gram block of granite at 92.6°C is dropped into a tub of water at 24.7°C in an isolated system. The final temperature of
Romashka-Z-Leto [24]

The granite block transferred <u>4080 J</u> of energy, and the mass of the water is <u>35.8 g</u>.

1. <em>Energy from granite block </em>

The formula for the heat (<em>q</em>) transferred is

<em>q = mC</em>Δ<em>T</em>

<em>m</em> = 126.1 g; <em>C</em> = 0.795 J·°C⁻¹g⁻¹; Δ<em>T</em> = <em>T</em>_f – <em>T</em>_i = 51.9 °C - 92.6 °C = -40.7 °C

∴ <em>q</em> = 126.1 g × 0.795 J·°C⁻¹g⁻¹ × (-40.7 °C) = -4080 J

The granite block transferred 4080 J.

2. <em>Mass of water </em>

<em>q = mC</em>Δ<em>T </em>

<em>m = q</em>/(<em>C</em>Δ<em>T</em>)

<em>q </em>= 4080 J; <em>C</em> = 4.186 J·°C⁻¹g⁻¹; Δ<em>T</em> = <em>T</em>_f – <em>T</em>_i = 51.9 °C – 24.7 °C = 27.2 °C

∴ <em>m</em> = 4080 J/(4.186 J·°C⁻¹g⁻¹ × 27.2 °C) = 35.8 g

The mass of the water is 35.8 g.

7 0
3 years ago
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elena-s [515]
Na,C12 is the answer
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Identify three factors that characterize aquatic systems
givi [52]
While terrestrial biomes are shaped by air temperature and precipitation, aquatic systems are characterized by factors such as water salinity, depth, and whether the water is moving or standing. If that's what you mean?
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3 years ago
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