At constant pressure, the density of a fixed mass of gas is
constant with temperature
proportional to its volume
inversely proportional to its temperature
independent of its volume
Correct answer is C
Density = mass/ volume
At constant pressure, volume is directly proportional to Temperature
Density is inversely proportional to the volume at constant mass
At constant pressure, volume = constant x temperature
hence, density = mass/ (constant x temperature)
which shows density is inversely proportional to temperature
One of the most important applications of bi-metallic strip is found in the construction of
a thermostat
an altimeter
a thermocouple
a hydrometer
Correct answer is A
No explanation has been provided for this answer.
0.18cm
1.80cm
18.00cm
1800cm
Correct answer is C
\(\alpha\) = \(\frac{extension}{L\Delta\theta}\)
0.000012 = \(\frac{e}{600 \times (35 - 10}\)
= 0.18m
= (0.18 x 100) cm
= 18.0 cm
80oC
60oC
40oC
10oC
Correct answer is C
100oC .... 5.5
\(\theta\)oC .... 5.3
0oC .... 5.0
\(\frac{\theta - 0}{100 - 0}\) = \(\frac{5.5 - 5 .0}{5.5 - 5.0}\)
\(\theta\) = 40oC
800kgm3
1200kgm3
1250kgm3
2000kgm3
Correct answer is A
R.d = \(\frac{0.4}{0.5}\) = 0.8
0.8 = \(\frac{\text {Density of oil}}{\text{Density of water}}\)
0.8 = \(\frac{\text {Density of oil}}{1000}\)
Density of oil = 800kgm3