The volume of an ideal gas is increased from 0.61 m3 to 3.9 m3 while maintaining a constant pressure of 970 Pa (1 Pa = 1 N/m2). If the initial temperature of the gas is 65 K, (a) What is the final temperature of the gas?

416K

Step-by-step explanation:

Given:

Initial volume = 0.61 m^3 => 610L

Final volume = 3.9 m^3 => 3900L

Initial temperature = 65 K

Final temperature =?

Charles law states that the volume of an ideal gas at constant pressure is directly proportional to the absolute temperature.

Therefore,

/ = /

610/ 65 = 3900 /

= (3900 x 65) / 610

=  415.5 K ≈ 416K

The final temperature of the gas is 416K

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation: