The absolute temperature of a perfect gas is proportional to the average
potential energy of the molecules
seperation between the molecules
kinetic energy of the molecules
velocity of the molecules
Correct answer is C
No explanation has been provided for this answer.
84s
112s
168s
280s
Correct answer is C
Heat energy = Elect. energy
mcθ = power x time
1 x 4200 x (50 - 20) = 750 x t
t = 168s
4200J
2,260,OOOJ
9,040,000J
9,380,000J
Correct answer is C
Heat by water = mcθ
Heat by steam = mcθ + mL
Difference = mL = 4 x 2,260,000
= 9,040,000J
2.0036m
2.0018cm
2.1800
2.0360m
Correct answer is A
α = L2−L1L1×Δθ
18 x 10-6 = L2−22×100
L = 2.0036m
25.0oC
50.0oC
66.7oC
75.0oC
Correct answer is D
100oC ... 90oS
θoC ... 60oS
0oC ... 30oS
θ−0100−0 = 60−(−30)90−(−30)
θ = 75oC