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adoni [48]
3 years ago
10

What are the reference points in thermometer with Celsius scale?

Chemistry
1 answer:
kupik [55]3 years ago
7 0
The most likely answer is the boiling point and freezing point of water.  The Celsius scale starts at the freezing point of water (0°C) and than scaled so that 100°C fell on the boiling point of water.

I hope this helps.  Let me know if anything is unclear. 
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In an airplane, a gas sample occurs at a volume of 1.5 L at 760.0 torr. Suppose, while flying, the airplane loses pressure and t
jekas [21]

Answer:

100 torr

Explanation:

First find the formula you need to use, this will be...

P2 = V1 x P1 / V2

Next, fill in the numbers, this will be...

P2 = ? (we are trying to find this)

P1 = 760 torr

V1 = 1.5 L

V2 = 11.4 L

Next, turn into new formula (just rearrange)

P2 = 1.5 L x 760 torr / 11.4 L

Next, do the math. This should get you...

<u>100 torr</u> as your answer

- Let me know if you need more help understanding. I would be glad to further explain or do more problems.

6 0
4 years ago
What occurs when the vapor pressure of a lquid is equal to the external atmospheric pressure
AlekseyPX

Answer:

The change from a liquid phase to a gaseous phase occurs when the vapor pressure of the liquid is equal to the atmospheric pressure exerted on the liquid.

Explanation:

Boiling is a physical change and molecules are not chemically altered during the process.

8 0
3 years ago
In using the reaction quotient Q to analyze reaction progress, for the condition where Q&lt;
Norma-Jean [14]

Answer:

The correct answer is reaction will achieve equilibrium by forming more products and will move in left to right direction.

Explanation:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as K_{eq}

K is the constant of a certain reaction when it is in equilibrium, while Q is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

  • If Q > K_{eq}  , then the equilibrium will shift in left direction or in backward direction.the reaction will move back to the formation of reactants from the product
  • If Q < K_{eq}  , then the equilibrium will shift in right direction or in forward direction.The reaction will form more products
7 0
4 years ago
Which of the following would be a value measured using a scale in lab?
Neko [114]

Answer:

A. Actual Yield

Since all of the others are calculated not measured outright.

4 0
3 years ago
Which of the following is an endothermic reaction?
olga2289 [7]
I think is b.an explosion hope it works

3 0
3 years ago
Read 2 more answers
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