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3 years ago

Please help me whit this question

Physics

1 answer:

mariarad [96]3 years ago

6 0

Answer:

Gypsum

Explanation:

Gypsum is a soft sulfate mineral composed of Calcium Sulfate di-hydrate. It is widely used in composition of fertilizer. It is also known as land plaster. On adding gypsum to soil, the quality of soil is improved. It conditions the soil and adds nutrients. The properties of soil is improved. Hence, the correct answer is Gypsum.

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3 years ago

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And in the final situation the gas have different volume $V_{f}$ and temeperature $T_{f}$ , the same pressure $P$ ,, and the same number of moles $n$ ,.

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$P=RT_{i}n/V_{i}$ and $P=RT_{f}n/V_{f}$ , as the pressure are equals in both states we can write

$RT_{i}n/V_{i} = RT_{f}n/V_{f}$

solving for $T_{f}$

$T_{f} = T_{i}/V_{i} * V_{f}$ (*)

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Replacing in (*)

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3 years ago