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Bogdan [553]
3 years ago
5

A sealed, insulated calorimeter contains water at 310 K. The surrounding air temperature is 298 K, and the water inside the calo

rimeter remains at 310 K two hours later. What type of system does the calorimeter attempt to model?
A closed system, because energy can enter or leave the system, but matter cannot.


A closed system, because neither heat nor matter is entering or leaving the container.


An isolated system, because energy can enter or leave the system, but matter cannot.


An isolated system, because neither heat nor matter is entering or leaving the container.
Chemistry
2 answers:
tatiyna3 years ago
8 0

Answer:

An isolated system, because neither heat nor matter is entering or leaving the container.

Explanation:

In a closed system there is no exchange of heat but matter is exchanged. In an isolated system there is no exchange of heat or matter. Here the temperature of water remains constant at 310 K, which means that no heat is exchanged. Also there is no decreases in volume of water the calorimeter after 2 hours, which means that no matter was lost either. Therefore this is an isolated system.

serious [3.7K]3 years ago
7 0
D is the answer, I believe.

An isolated system is one that allows neither heat or matter to enter or exit, and since the liquid remained the same temperature, one can conclude that neither energy nor matter is passing through.
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What is the main difference between rocks and minerals
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2 years ago
A solution is made by adding 29.1 mL of concentrated perchloric acid ( 70.5 wt% , density 1.67 g/mL ) to some water in a volumet
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Answer:

The concentration of the solution is 1.364 molar.

Explanation:

Volume of perchloric acid = 29.1 mL

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m=1.67 g/mL\times 29.1 mL=48.597 g

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Mass of perchloric acid in 48.597 solution :

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Moles of perchloric acid = \frac{34.261 g}{100.46 g/mol}=0.3410 mol

In 29.1 mL of solution water is added and volume was changed to 250 mL.

So, volume of the final solution = 250 mL = 0.250 L (1 mL = 0.001 L)

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The concentration of the solution is 1.364 molar.

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Homeostasis means maintaining
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Explanation:

So D. Glad to help! :D

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