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DIA [1.3K]
2 years ago
6

I am soo happy merry Christmas in advance paro​

Chemistry
2 answers:
JulsSmile [24]2 years ago
8 0

merry Christmas yashu.....love u lot....my ❤

quester [9]2 years ago
6 0

Answer:

Aww you too I am super excited for Christmas hby>

Explanation:

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5 physical properties of osmium
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In 1803AD, Osmium was discovered by Smithson Tennant when dissolving an impure sample of platinum in aqua regia, a mixture of hydrochloric and nitric acids. He was able to determine that the black powder left behind after dissolving the platinum was actually a mixture of two new elements, indium and osmium.

•Osmium is a bluish-white and shiny metal.

•Osmium is very hard and is brittle even at very high temperatures.

•Osmium has the lowast vapor pressure and the highest melting point among the platinum group of metals.

•Osmium's density is slightly more than iridium hence is credited as the heaviest element.
6 0
2 years ago
Two samples of carbon come into contact. A heat transfer will occur between sample A and sample B. What must be true for heat to
jarptica [38.1K]

Answer:

The average kinetic energy of A is greater than that of B.

Explanation:

The temperature of an object is directly proportional to the average kinetic energy of the particles in the object. For instance, for an ideal gas, we have

KE=\frac{3}{2}kT

where

KE is the kinetic energy

k is the Boltzmann constant

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Therefore, this means that in a hotter object the average kinetic energy of the particles is higher than the average kinetic energy of the particles in a colder object.

Moreover, the laws of thermodynamics tell us that heat is always transferred from a hotter object (higher temperature) to a colder object (lower temperature).

In this problem heat is transferred from sample A to sample B. Therefore, this means that object A has higher temperature, and therefore, higher average kinetic energy. So the correct answer is

The average kinetic energy of A is greater than that of B.

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