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Romashka-Z-Leto [24]

3 years ago

14

a balloon will get smaller when it's filled with air, when air is heated, or cooled, or when it rises?

2 answers:

Irina-Kira [14]3 years ago

8 0

As it air is cooled, a balloon will get smaller.

to better understand this, we should recall the properties of gases

when we have pressure, volume and temperature, they are all proportional to each except pressure and volume.

so, if air is heated, meaning temperature is increased, that means volume increases. (get's bigger-- not the answer)

if balloon rises, as it goes up, the pressure decreases, if pressure decreases, volume increases

when the air is cooled, meaning temperature is decreased, that means volume decreases as well.

lora16 [44]3 years ago

5 0

Assuming the balloon is untied aka the air inside isn't intact.

It will get smaller when it rises.

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4 years ago

Calculate the mass of a solute in a 10% salt solution if the mass is 350 grams.

Lyrx [107]

<u>Answer:</u> The mass of a solute is 35 grams

<u>Explanation:</u>

To calculate the mass percentage of solute, we use the equation:

$\text{Mass percent of solute}=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 100$

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4 years ago

Calculate the wavelength and frequency of an emitted photon of gamma radiation that has energy of 3.02 × 1011 J/mol.

maks197457 [2]

The wavelength is 4.0 * 10^-13 m while the frequency is 7.5 * 10^20 s−1

Using the formula;

E =hf

Where

E = Energy of the photon

f = Frequency of photon

h = Plank's constant = 6.6 * 10^-34 Js

To obtain the energy in Joules;

E = 3.02 × 10^11 J/mol/6.02 * 10^23 mol

= 5 * 10^-13 J

f = E/h

f = 5 * 10^-13 J/6.6 * 10^-34 Js

f = 7.5 * 10^20 s−1

f = c/λ

c = speed of light = 3 * 10^8 m/s

λ = c/f

λ = 3 * 10^8 m/s/7.5 * 10^20 s−1

λ = 4.0 * 10^-13 m

The wavelength is 4.0 * 10^-13 m while the frequency is 7.5 * 10^20 s−1

Learn more: brainly.com/question/2393994

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3 years ago