Answer:

The **best explanation** for the **observation** is that, the **Pressure** is **proportional** to **temperature** for a **fixed volume** of gas. (**Option A**)

From the **question given above**, the following data were obtained:

- Initial volume (V₁) = 2 L

- Initial pressure (P₁) = 1 atm

- Initial temperature (T₁) = 300 K

- Final temperature (T₂) = 150 K

**Final volume (V₂) = 2 L = constant**

- Final pressure (P₂) = 0.420 atm

From the **above**, we can see that the **volume is constant. **

Applying the **combine gas equation**, we can conclude as follow:

P₁V₁ / T₁ = P₂V₂ / T₂

**V₁ = V₂**

P₁ / T₁ = P₂ / T₂

P/T = constant

**P = constant × T**

Thus, we can **conclude** that the **pressure** is **proportional** to the **temperature** at **constant volume.** This simply implies that the **pressure** will increase if the **temperature increase** and it will also **decrease** if the **temperature decreases.**

The **correct answer** to the **question** is **Option A.**

Learn more about gas laws: brainly.com/question/9631148

Answer:

**Answer:**

A

**Explanation:**

PV=nRT

PV/nT

V/T -> (1)/(300)=(x)/(150)

x=.420

What is the solubility in pure water of ba(io3)2 in moles per liter at 25 ˚c? [ksp (25 ˚c) = 6.0 10–10]?

A single replacement reaction is a reaction in which one element replaces a similar element within a compound. TRUE OR FALSE

The Earth can gain or lose matter. True False

The rate constant for a certain reaction is k = 6.50×10−3 s−1 . If the initial reactant concentration was 0.600 M, what will the concentration be after 3.00 minutes?

Find the density of an object that has a volume of 2.3 x 10^2 and a mass of3.5 x 10^3. *

A single replacement reaction is a reaction in which one element replaces a similar element within a compound. TRUE OR FALSE

The Earth can gain or lose matter. True False

The rate constant for a certain reaction is k = 6.50×10−3 s−1 . If the initial reactant concentration was 0.600 M, what will the concentration be after 3.00 minutes?

Find the density of an object that has a volume of 2.3 x 10^2 and a mass of3.5 x 10^3. *

**Answer:**

4.88 Cals per degree celsius

**Explanation:**

We have taken heat of fusion of ice = 80 cals / g

We have taken speciic heat of water = 1 cal/g per degree celsius

In this experiment , let the heat capacity of calorimeter be X.

Heat gained by ice

heat gained in melting + heat gained in getting warmed

= mass x latent heat + mass x specific heat x rise in temperature

= 17.69 x 80 + 17.69 x 1 x ( 12.9 - 0 )

= 1643.4 Cals

Heat lost by water

= mass x specific heat x fall in temperature

98.67 x 1 x ( 28.77 - 12.9 )

= 1565.89 Cals

Heat lost by calorimeter

heat capacity x fall in temperature

X x ( 28.77 - 12.9 )

Heat gained = heat lost

1643.4 = 1565.89 +15.87X

X = 4.88 Cals per degree celsius

which oneeeee

b is the correct answer

B 30%

C 20%

D 10%

I believe it B 30% hope that helps

I think it’s B I’m not sure sorry if it’s wrong

B. apply a force in a direction that is different than the direction of the force applied to the machine

C. move an object a greater distance than the distance that part of the machine was moved

D. apply a force that is less than the force that is applied to the machine

Answer:

Explanation:

**move an object a greater distance than the distance that part of the machine was moved**

**Answer:**

**Explanation:**

general appearance as real-ufe

objects.

True or false

**Answer:**

true

**Explanation:**

**Answer:**

True

**Explanation:**

Because its true

As voltages is a potential in relation to a reference, one probe must be on the reference or "zero" planes and the other must be on the point being **measured**.

because the voltmeter uses some of the main **circuit's **current. Main present in the circuit **diminishes **as a result, and the voltmeter's reading of the potential difference does not correspond to its true value.

Nothing is measured at a specific point by the voltmeter. It **gauges **the voltage (V) differential between two circuit locations. Thus, a **multimeter** has two leads rather than one.

To know more about **measured** visit:

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