420S
336S
168S
48S
Correct answer is B
Heat energy = Elect. energy
mc\(\theta\) = power x time
2 x 4200 x (100 - 20) = 2000 x t
t = 336s
The equation PxVyTz = constant in charles' law when
x = 1, y = -1, z = 1
x = 0, y = 1, z = -1
x = 1, y = 0, z = -1
x = 0, y = 1, z = 1
Correct answer is B
According to Charles' law, the volume of a given mass of gas is directly proportional to its absolute temperature at constant pressure.
decrease because the density of water decreases with temperature
increase because the density of water decreases with temperature
decreases because the density of water increases with water temperature
increase because the density of water increases with temperature
Correct answer is A
No explanation has been provided for this answer.
1.5%
1.1%
0.4%
0.1%
Correct answer is B
Y = \(\frac{\Delta V}{V \times \Delta \theta}\)
3 x 10-5 x 1.2 = \(\frac{\Delta\ V}{10^{-6}\times\ (573 - 273)}\)
\(\Delta\)V = 1080 x 10-11m3
%\(\Delta\)V = \(\frac{1080 \times\ 10}{10^{-6}}\) x 100
= 1.08%
\(\approx\) = 1.1%
Temperature is the measure of the
quantity of heat transferred into the molecules of an object
mean kinetic energy of the molecules of the object
kinetic energy of any individual molecule of the substance
amount of work done by the molecules of the object
Correct answer is B
No explanation has been provided for this answer.