Answer:
5.19 m³
Explanation:
Data Given:
initial Pressure P1 = atmospheric pressure
Reported atmospheric pressure = 14.696 psi
Final pressures P2 = 68 psi
initial Temperature T1 = 26 °C
final Temperature T2 = 48 °C
initial Volume V1= 13 m³
final Volume V2 = ?
Solution:
Formula will be used
P1 V1 / T1 = P2 V2 / T2
To calculate volume rearrange the above formula
V2 = (P1 V1) T2 / T1 P2 . . . . . . . .(1)
put values in equation 1
V2 = (14.696 psi x 13 m³) 48 °C / 26 °C x 68 psi
V2 = (191.05 psi m³) 48 °C / 1768 °C psi
V2 = (9170.3 psi m³ °C / 1768 °C psi
V2 = 5.19 m³
So, final volume is 5.19 m³
What your going to do is take away the lowest number form the highest and subtract. Thats your answer...
Answer:
Therefore F ∠ 2.5N
Explanation:
Definition of Work:
It is the amount of energy transferred.
Mathematical expression:
W = F × d
By taking the friction into count it will define as:
Input work = work against friction × output work
No we will put the values:
25 J = w + 10 m
j = kg m²/s²
25 kg m²/s² = w + 10 m
when friction is exist then w > 0
25 kg m²/s² - 10 m > 0
15 N > 0
Therefore F ∠ 2.5N
Answer:
The reactants are MgF₂ and Be.
This is a single displacement reaction.
Explanation:
Chemical reactions are written like this:
reactant + reactant => product + product
There may be more or less reactants and products on each side, separated by + the plus sign. The reactants are on the left and the products are on the right.
In the equation BeF₂ + Mg => MgF₂ + Be, <u>the products (on the right side) are MgF₂ and Be</u>.
Since the total reactants are equal to the total products, every element that you see on the left must also appear on the right. On the left, the question gave you the elements "Be", "F" and "Mg". On the right, "Be" was missing, so it must be the missing product.
This is a <u>single displacement reaction</u> because one element that was in a pair was replaced by another.
All single displacement reactions look like this:
AB + C = AC + B An element that was paired up switched places with another element that was not paired up.
In this reaction, "Be" was displaced. It started the reaction paired up with "F", but it was replaced by "Mg".
