can you check my answers(has star next to it)
1. Absolute zero is when T = 0 K.
A. true*
B. false
2. Molecular motion is neglibible at absolute zero.
A. true*
B. false
3. Absolute zero is the temperature when P = 0.
A. true*
B. false
4. Absolute zero is when T = 0C
A. true
B. false*
5. When pressure is plotted on the x-axis and Celsius temperature is on the y-axis, the y-intercept is absolute zero .
A. true*
B. false
I would think about the answers to 3 and 5. The question doesn't say that the gas is an ideal gas or not so I'm a little confused about some of the implications because of that. I think your answers to questions 1, 2, and 4 are fine.
For 3, although the pressure of an ideal gas is zero at absolute zero, that is NOT the definition of absolute zero. Perhaps this is a nit-picky point. The question appears to be defining absolute zero as the point when P = 0.
For #5, if we plot T vs P for an ideal gas, won't the extrapolated line go through zero?
Perhaps this is not an ideal gas. For a real gas, the y-intercept might be the VOLUME of the gas at absolute zero,
Check my thinking.
Scratch that last sentence. Volume isn't even in the P vs T question.
state charle s law
To check the answers:
1. Absolute zero is when T = 0 K.
To answer this question, you can recall that absolute zero is defined as the lowest possible temperature, at which point all molecular motion theoretically stops. This temperature is equivalent to 0 Kelvin (K). Therefore, the correct answer is A. true.
2. Molecular motion is negligible at absolute zero.
To answer this question, you can recall that the concept of absolute zero implies that molecular motion comes to a halt. This means that at absolute zero, molecular motion is negligible. Therefore, the correct answer is A. true.
3. Absolute zero is the temperature when P = 0.
To answer this question, you can refer to the definition of absolute zero, which is solely related to temperature and molecular motion, not pressure. Therefore, the correct answer is B. false.
4. Absolute zero is when T = 0°C.
To answer this question, you need to remember that absolute zero is measured in Kelvin (K), not Celsius (°C). The Kelvin scale starts from absolute zero, and 0°C is not equal to absolute zero. Therefore, the correct answer is B. false.
5. When pressure is plotted on the x-axis and Celsius temperature is on the y-axis, the y-intercept is absolute zero.
To answer this question, you can refer to the definition of absolute zero, which is the temperature at which molecular motion ceases. The y-intercept on the graph represents the temperature when pressure is zero, which corresponds to absolute zero. Therefore, the correct answer is A. true.
Based on the explanations provided, the correct answers are:
1. A. true
2. A. true
3. B. false
4. B. false
5. A. true