I’m not too sure, but I think the answer is ‘waxing crescent’. I hope it’s right.
The final volume of the gas is 144.25 L
Explanation:
For an ideal gas kept at constant pressure, the work done by the gas on the surroundings is given by
where
p is the pressure of the gas
is the initial volume
is the final volume
For the gas in the cylinder in this problem,
p = 2.00 atm
And we also know the work done,
W = 288 J
So we can solve the equation for , the final volume:
Learn more about ideal gases:
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I am not sure on the rest but the answer to question 4 is volts. sorry i couldn’t be of more help!
Your equation is:
An equation is balanced only if there are the same number of atoms of each element on both sides of the arrow - aka same number of atoms of each element in both reactants (left of the arrow) and products (right of the arrow).
It'll be easiest to tackle this by counting up the number of atoms of each element on the left and on the right and comparing those numbers. If there is a number in front of the entire compound, that means that number applies to all elements in the compound. If the number is a subscript (little number to the right of the element), that means that number only applies to the element that the subscript is attached to:
1) On the left, you have:
2) On the right, you have:
You can see that the number of oxygen and hydrogen atoms aren't equal on both the left (reactants) and the right (products), so the equation is unbalanced.
Your final answer is "T<span>he equation is
unbalanced because the number of hydrogen atoms and
oxygen is
not equal in the reactants and in the products."</span>
Answer:
a) 165.79 N
b) 661.19 N
Explanation:
Given
First mass of mass, m1 = 50.5 kg
Second mass of mass, m2 = 16.9 kg
The tension in the lower rope balances the weight of the second mass, so that we have
T(lower) = 16.9 kg * 9.81 N/kg = 165.79 N
The tension in the upper rope would then balance the weight of the both the upper and lower masses together (if we assume the ropes to be ideal, then we can neglect their own masses), so that
T(upper) = (50.5 kg + 16.9 kg) * 9.81 N/kg
T(upper) = 67.4 kg * 9.81 N/kg
T(upper) = 661.19 N
Therefore, the tension in the lower rope is 165.79 N and that in the upper rope is 661.19 N