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Art [367]
3 years ago
7

5 moles of a monatomic gas has its pressure increased from 105 Pa to 1.5*105 Pa. This process occurs at a constant volume of 0.1

m3. How much work is done by the gas?
Chemistry
1 answer:
Lunna [17]3 years ago
7 0

Answer:

there is no work done by the gas since the volume remains constant

Explanation:

for a closed system , the work that is done by the gas is defined as

W= ∫p dV

where p= pressure , V= volume

since the volume remains constant dV=0 , therefore W=0

thus there is no work done by the gas

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The balanced chemical reaction is written as:

<span>Zn + 2AgNO3 = Zn(NO3)2 + 2Ag

To determine the grams of silver metal that is being produced, it is important to first determine which is the limiting reactant and the excess reactant from the given initial amounts. We do as follows:

4.35 g Zn ( 1 mol / 65.38 g ) ( 2 mol AgNO3 / 1 mol Zn ) = 0.1331 mol AgNO3 needed
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Therefore, the limiting reactant would be the zinc metal since it would be consumed completely in the reaction. The excess amount of AgNO3 would be:

0.2107 mol AgNO3 - 0.1331 mol AgNO3 = 0.0776 mol AgNO3 left ( 169.87 g / 1 mol ) = 13.19 g AgNO3 left

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