The volume of 400 mL of chlorine gas at 400 mm Hg is decreased to 200 mL at constant temperature. What is the new gas pressure?
2 answers:
Answer:
Option 4 - 800 mm Hg
option 4 - Pressure
Step-by-step explanation:
Given : The volume of 400 mL of chlorine gas at 400 mm Hg is decreased to 200 mL at constant temperature.
To find : What is the new gas pressure?
Solution :
Applying Boyle's law, which states that at constant mass and temperature, the volume of a gas is inversely proportional to the pressure.
The formula is given by,
Where,
Substitute the value in the formula,
So, The new gas pressure is 800 mm Hg.
Therefore, option 4 is correct.
We know that, The collision of gas molecules with the walls of its container
produces pressure.
Therefore, Option 4 is correct.
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Answer:
The answer is
Step-by-step explanation:
Given: f(x) = 3 + 2x - x²
To compute f(3 + h) substitute x = 3 + h.
Similarly, to compute f(h) simply substitute x = h.
We are asked to compute
f(3 + h) = 3 + 2(3 + h) - {(3 + h)²}
= 3 + 6 + 2h - {9 + 6h + h²}
= 9 + 2h - 9 - 6h - h²
= - 4h - h²
Now, f(h) = 3 + 2h - h²
f(3 + h) - f(h) = -4h - h² - 3 - 2h + h²
= -6h - 3
which is the required answer.