increase the external pressure
reduce the external pressure
heat more rapidly at the same pressure
reduce the external pressure by a quarter
Correct answer is A
No explanation has been provided for this answer.
60g
67g
120g
133g
Correct answer is C
Heat lost = heat gained
1 x 400 x (100 - 0) = m x 333000
m = 0.12kg
converting to grams; 0.12 x 1000
= 120g
The pressure of a gas when cooled at constant volume will decrease because the molecules
collide less frequently with the walls of the container
have the same average kinetic energy
break up into smaller molecules
decrease in number
Correct answer is A
No explanation has been provided for this answer.
\(\frac{/ - /_o}{/ \Delta t}\)
\(\frac{/ - /_o}{/_o \Delta t}\)
/o(1 + \(\Delta\) t)
\(\frac{/ - /_o}{/(1 + \Delta t)}\)
Correct answer is B
\(\frac{L - L_o}{L_o \Delta t}\)
43.0oC
50.0oC
69.9oC
87.0oC
Correct answer is B
100oC .... 1.05\(\theta\)
\(\theta\)oC .... 0.9\(\theta\)
0oC .... 0.75\(\theta\)
\(\frac{\theta - 0}{100 - 0}\) = \(\frac{0.9 - 0.75}{1.05 - 0.75}\)
\(\theta\) = 50oC