The boiling point of a liquid depends on the following except the
nature of the liquid
external pressure
volume of the liquid
impurities present in the liquid
degree of it's molecular cohesive force
Correct answer is C
No explanation has been provided for this answer.
54cm2
273cm2
300cm2
546cm2
600cm2
Correct answer is A
\(\frac{V_1}{T_1} = \frac{V_2}{T_2}\)
T2 = 0 + 273 = 273k
V1 = 600
T1 = 27 + 273 = 300k
V2 = \(\frac{V_1T_2}{T_1}\) = 546cm
V1 - V2 = 54cm
76cm of Hg
75cm of Hg
74cm of Hg
60cm of Hg
45cm of Hg
Correct answer is B
P1 = p + 15, p2 = p - 15
v1 = 30cm, v2 = 45cm
P1v1 = p2v2
p = 75cm of Hg
0.1oC
1.0oC
42oC
100oC
4.20oC
Correct answer is B
Potential Energy = Heat Energy
mgh = Mc\(\Delta \theta = \frac{gh}{c} = \frac{10 \times 240}{4.20 \times 10^3}\)
= 1.0oC
1.0 x 10-3k-1
2.0 x 10-4k-1
2.0 x 10-5k-1
1.0 x 10-5k-1
2.0 x 10-6k-1
Correct answer is C
\(\alpha = \frac{\Delta L}{L \Delta \theta} = \frac{0.020}{20 \times (55 - 5)} = 2.0 \times 10^{-5}\)
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