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den301095 [7]
4 years ago
7

How do i solve this

Mathematics
1 answer:
In-s [12.5K]4 years ago
3 0

Check the picture below.

using the 30-60-90 rule.

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Hello, can somebody please help me with this word problem? Thanks.
erastovalidia [21]
We are given that this is an ideal gas, and that the volume and presumably the number of moles of gas are constant. We can use Gay-Lussac's Law, which describes volume and pressure. We have that pressure is directly proportional to volume. For a change in a gas, we can write the equation as 
\dfrac{P_i}{T_i} = \dfrac{P_f}{T_f},
where i denotes initial and f denotes final.

We have that T_i=600 \ K, T_f=800 \ K, and P_f=30 \ atm. We need to find P_i. To do so, let's first rearrange Gay-Lussac's equation to solve for P_i.

\dfrac{P_i}{T_i} = \dfrac{P_f}{T_f} \\\\P_iT_f=P_fT_i\\\\P_i= \dfrac{P_fT_i}{T_f}

Now, we plug in our values to get P_i.

P_i= \dfrac{P_fT_i}{T_f}=\dfrac{30\ atm \ 600 \ K}{800 \ K} = 22.5 \ atm.

This seems like a reasonable value, because as temperature goes up, pressure goes up, and an increase in temperature corresponds to an increase in pressure.

Technically, you were given values with only one significant figure, so you can only report the value as 20 \ atm, but this depends on how your instructor usually does these problems!

4 0
3 years ago
Rheld 1.org bookmarks
boyakko [2]

Answer:

800 cubic inches

Step-by-step explanation:

So all we need to do is:

1) find the volume of 1 cube

2) multiply it by 100, because 100 cubes make up the prism

SO 1)

The volume of cube = side * side * side = 2*2*2 = 8 cubic inches

SO 2)

The volume of prism = 100 * vol(cube) = 100 *8 = 800 cubic inches

ANSWER: 800 cubic inches

6 0
3 years ago
Juanita is converting 7 meters to inches. Will the number of inches be less than or greater than 7?
Harlamova29_29 [7]
Greater because 1 meter equals 39.37 inches. 7 meters equals 275.591 inches.
8 0
4 years ago
Read 2 more answers
If the sum of a term of an ap is 2n square + 5n then find the 4th term​
zlopas [31]

Answer:

19

Step-by-step explanation

Let the sum of n terms of A.P. = Sn

7 0
4 years ago
Read 2 more answers
The function f is given by f(x) = 10x + 3 and the function g is given by g(x) = 2×. for each question, show your reasoning
anzhelika [568]

Answer:

i got you :D

Step-by-step explanation:

f(x)= 2x²+4x-6 and g(x)=2x-2, find each function

1. (f/g) (x) = f(x)÷g(x) = (2x²+4x-6)÷(2x-2)

First factor both top and bottom:

(2x-2)(x+3)÷(2x-2) = x+3

2. f(a + 2) = plug (a+2) in anywhere there is an x in f(x)=2x²+4x-6 -->

2(a+2)^2 +4(a+2)-6 = 2(a^2+4a+4)+4a+8-6, now distribute:

2a^2+8a+8+4a+2, combine like terms

2a^2+12a+10

5 0
3 years ago
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