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Yanka [14]
3 years ago
8

what is the correct definition of refraction? 1. A change in the direction of light when it goes from one medium into a differen

t medium. 2. light passes though an object without being affected by that object. 3. when light strikes an object, it doesn’t pass through and it does not change direction. 4. light bounces back from an object at the same angle and intensity that the object received it.
Chemistry
2 answers:
elena-14-01-66 [18.8K]3 years ago
7 0

Answer: The answer is A

Explanation:

serious [3.7K]3 years ago
5 0

im pretty sute the answer would be number 4.

mark brainliest  :)

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A 25 liter gas cylinder contains 10 mole of carbon dioxide. Calculate the pressure, in atm, of the gas at 325K.
Arada [10]

<u>Answer:</u> The pressure of carbon dioxide gas is 11 atm

<u>Explanation:</u>

To calculate the pressure of gas, we use the equation given by ideal gas equation:

PV = nRT

where,

P = pressure of the gas = ?

V = Volume of gas = 25 L

n = number of moles of gas = 10 mole

R = Gas constant = 0.0821\text{ L atm }mol^{-1}K^{-1}

T = temperature of the gas = 325 K

Putting values in above equation, we get:

P\times 25L=10mol\times 0.0821\text{ L atm }mol^{-1}K^{-1}\times 325K\\\\P=11atm

Hence, the pressure of carbon dioxide gas is 11 atm

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