The following volume-temperature plots were made at different values of constant
ID: 528321 • Letter: T
Question
The following volume-temperature plots were made at different values of constant pressure while the number of moles of gas in each experiment remained the same. Which plot represents measurements at the highest pressure? a. A b. B c. C d. D c. They are all at the same pressure. It is relatively easy to change the temperature of a substance that a. is very massive. b. is an insulator. c. has a high specific heat capacity. d. has a low specific heat capacity. e. is brittle. In Bohr's atomic theory, when an electron moves from one energy level to another energy level more distant from the nucleus. a. energy is absorbed. b. light is emitted. c. energy is emitted. d. no change in energy occurs. e. none of these In general, atomic radii a. decrease from left to right in a period and increase down a group. b. increase from left to right in a period and decrease down a group. c. do not change across a period or a group. d. decrease from left to right and decrease down a group.Explanation / Answer
(5) (a) A
Because at higher pressure, the volume of gas will be lower.
(6) (d) Low specific heat of capacity.
Specific heat: Amount of heat required to raise the temperature of 1 g. of substance by 1 0C. Lower is the value of specific heat, easier to raise its temperature.
(7) (a) Energy is absorbed.
When an electron jumps from lower energy level to higher energy level energy is absorbed. If electron jumps from higher energy level to lower energy level, energy is emitted.
(8) (a) Decrease from left to right in a period and increase down a group.
Because the last electrons enters into same valence shell in a period and enters into different valence shells (Higher) in a group.
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