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3 years ago

9. Why do areas near large bodies of water tend to not experience large swings in temperature? (2 points)

2 answers:

6 0

I think the correct answer from the choices listed above is the third option. Areas near large bodies of water tend to not experience large swings in temperature because water has a high specific heat. <span>That's because water can take up lots of thermal energy, and thus preven wild swings in temperature. </span>

Serhud [2]3 years ago

4 0

Answer: Water has a high specific heat.

Explanation: Specific heat is the amount of heat required to raise the temperature of 1 gram of substance through $1^0C$ .

Water has high value of specific heat as the water molecules are bonded strongly through hydrogen bonds. Thus a large amount of heat is required to break the bonds and increase the kinetic energy of molecules.

This is due to this reason that areas near large bodies of water tend to not experience large swings in temperature.

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3 years ago

Which of the following are steps for balancing chemical equations?

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B. Write the chemical equation using formulas and symbols.

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A gas storage cylinder in an ordinary chemical laboratory measures 6.6cm wide and 26.Cm high. This is the label on it. N2 gas Pr

Stels [109]

Answer:The final volume of nitrogen gas will be 13 L. Nitrogen gas was collected in the plastic bag.

Explanation:

Volume of the storage cylinder:

Volume of the cylinder = $\pi r^2h$

Diameter of the cylinder (d)= 6.6 cm

So, radius of the cylinder $=\frac{d}{2}=\frac{6.6}{2}=3.3cm$

Height of the cylinder = 26 cm

Volume of the cylinder= $=V_1=\pi r^2h=3.14\times (3.3cm)^2\times 26cm=889.05 cm^3=889.05\times 10{-3} L(1cm^3=10^{-3}L)$

Pressure of the $N_2$ gas in a cylinder = $P_1= 14.9 atm$

The cylinder is opened and the gas allowed to escape into a large empty plastic bag. So, now the value of the pressure $P_2$ will become equal to atmospheric pressure that 1 atm .

Volume of $N_2$ gas in plastic bag $V_2$ will be given by the expression of Boyle's law

$P_1V_1=P_2V_2$

On substituting the values:

$14.9\times 889.05\times 10^{-3} L= 1atm \times V_2=$

$V_2=13.24 L$

The final volume of nitrogen gas will be 13.24 L when rounded of to two significant figures will be 13 L. Nitrogen gas was collected in the plastic bag.

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3 years ago