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ValentinkaMS [17]
2 years ago
10

A sample of a gas in a 4 L container at 300 K has a pressure of 1 atm. If the temperature is increased to 600 K and the volume i

s decreased to 2 L, the pressure is likely to be closest to which of the following?
0.5 atm
в
1 atm
с
2 atm
D
4 atm
Chemistry
1 answer:
icang [17]2 years ago
6 0

Answer:

Explanation:

Did u ever get the answer?

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Object A at 40.°C and object B at 80.°C are placed in contact with each other. Which statement describes the heat flow between t
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Answer: The correct option is 2.

Explanation: Heat flow is defined as the transfer of energy from hotter object to cooler object when two objects are kept together at different temperatures. As the energy remains conserved, so the heat flow will take place until the equilibrium is attained.

In the above asked question, Object A is at 40° C and Object B is at 80° C.

Object B is at higher temperature, so the heat flow will take place from Object B to Object A.

Hence, the correct option is 2.

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when you started the activity, the can was open to the air outside tge can. how did the air pressure inside the can compare to t
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The air pressure inside the can is lower compared to that of outside air pressure.

Explanation:

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The half life of radon-222 is 3.8 days. How Much of a 100g sample is left after 15.2 days
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Answer:  

6.2 g  

Explanation:  

In a first-order decay, the formula for the amount remaining after <em>n</em> half-lives is  

N = \frac{N_{0}}{2^{n}}  

where  

<em>N</em>₀ and <em>N</em> are the initial and final amounts of the substance  

1. Calculate the <em>number of half-lives</em>.  

If t_{\frac{1}{2}} = \text{3.8 da}  

n = \frac{t}{t_{\frac{1}{2}}} = \frac{\text{15.2 da}}{\text{3.8 da}}= \text{4.0}

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