A teacher demonstrated the relationship between the pressure and the volume of a fixed mass of gas at a constant temperature - AQA - GCSE Physics - Question 7 - 2023 - Paper 1
Question 7
A teacher demonstrated the relationship between the pressure and the volume of a fixed mass of gas at a constant temperature.
Figure 9 shows the equipment used.
Fi... show full transcript
Worked Solution & Example Answer:A teacher demonstrated the relationship between the pressure and the volume of a fixed mass of gas at a constant temperature - AQA - GCSE Physics - Question 7 - 2023 - Paper 1
Step 1
Complete the sentence.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Particles in a gas move in random directions.
Step 2
Complete the sentence.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Particles in a gas move with a range of speeds.
Step 3
Complete Figure 10.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
To complete Figure 10, plot the points corresponding to the data in Table 6 accurately, placing points at (10, 300), (15, 200), (20, 150), (25, 120), and (30, 100). Finally, draw a smooth curve that represents the line of best fit.
Step 4
Calculate the constant when the pressure of the gas was 300 kPa.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Using the formula:
extPressureimesextVolume=extConstant
When the pressure is 300 kPa and the volume is 10 cm³:
300imes10=3000extkPacm3
Therefore, the constant is 3000 kPa cm³.
Step 5
How does increasing the volume affect each of the following quantities?
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Quantity
Decreases
Stays the same
Increases
Mean time between collisions of the particles with the tube
