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aivan3 [116]
2 years ago
15

A mixture of CO(g) and H2(g) is pumped into a previously evacuated 2.0 L reaction vessel. The total pressure of the reaction sys

tem is 1.2 atm at equilibrium. What will be the total pressure of the system if the volume of the reaction vessel is reduced to 1.0 L at constant temperature? (A) Less than 1.2 atm b. Greater than 1.2 atm but less than 2.4 atm (C) 2.4 atm (D) Greater than 2.4 atm
Chemistry
1 answer:
aleksandrvk [35]2 years ago
6 0

Answer:

The answer to your question is letter C, 2.4 atm

Explanation:

Data

Volume 1 = V1 = 2 L

Pressure 1 = P1 = 1.2 atm

Pressure 2 = P2 = ?

Volume 2 = V2 = 1 L

Formula

                    P₁V₁  =  P₂V₂

Solve for P₂

                       P₂ = P₁V₁ / V₂

Substitution

                       P₂ = (2)(1.2) / 1

Simplification

                        P₂ = 2.4 / 1

Result

                        P₂ = 2.4 atm  

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A 0.150-kg sample of a metal alloy is heated at 540 Celsius an then plunged into a 0.400-kg of water at 10.0 Celsius, which is c
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Answer:

C_{alloy}=0.497\frac{J}{g\°C}

Explanation:

Hello there!

In this case, according to this calorimetry problem on equilibrium temperature, it is possible for us to infer that the heat released by the metal allow is absorbed by the water for us to write:

Q_{allow}=-(Q_{water}+Q_{Al})

Thus, by writing the aforementioned in terms of mass, specific heat and temperature, we have:

m_{alloy}C_{alloy}(T_{eq}-T_{alloy})=-(m_{water}C_{water}(T_{eq}-T_{water})+m_{Al}C_{Al}(T_{eq}-T_{Al})

Then, we solve for specific heat of the metallic alloy to obtain:

C_{alloy}=\frac{-(m_{water}C_{water}(T_{eq}-T_{water})+m_{Al}C_{Al}(T_{eq}-T_{Al})}{m_{alloy}(T_{eq}-T_{alloy})}

Thereby, we plug in the given data to obtain:

C_{alloy}=\frac{-(400g*4.184\frac{J}{g\°C} (30.5\°C-10.0\°C)+200g*0.900\frac{J}{g\°C}(30.5\°C-10.0\°C)}{150g(30.5\°C-540\°C)} \\\\C_{alloy}=0.497\frac{J}{g\°C}

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2 years ago
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Which area of the periodic table has the most elements included within it?
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The area of the periodic table that has the most elements included within it is metals (option A).

<h3>What is periodic table?</h3>

Periodic table of elements is a tabular chart of the chemical elements according to their atomic numbers so that elements with similar properties are in the same group (column).

The periodic table encompasses chemical elements arranged horizontally and vertically. The periodic table is made up of groups and periods.

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