This can be solve using heat
balance. The amount of heat the lead released is equal to the amount of heat
the ice absorb.
The heat release by the leas = m1*Cp*deltaT
Where m1 is the mass of lead
Cp is the specific heat of lead
Delta is the change of temperature
Heat absorbed by the ice = m2Lf
Where m2 is the mass of ice
Lf is the latent heat of fusion of
ice
M1*Cp*deltaT = m2Lf
(15g) ( 0.128 j/g C) ( 120 -0 C) =
m2(333/g)
Solving for m2
<span>M2 = 0.69 kg of ice melts</span>
Answer:
m = 359.24 kg
Explanation:
given data:
mass of ice = 200 kg
latent heat of steam = 2260 kJ/kg
latent heat of ice = 334 kJ/kg
from conservatioon of energy principle we know that
heat lost by steam will be equal to heat gained by ice
therefore we have
( ml + mcdt) = (ml + mcdt)
m*2.26*10^6 + m*4186*(100-30) = 200*3.33 *10^6 + 2000*4186 *30
m = 359.24 kg
the size, length, or amount of something by measuring
a unit or system of measuring
<span> The Sun if the object in the solar system that is always one foci. It is also the source of radiation energy which radiates throughout the system. Sun is the only natural source of energy that has helped the growth of life on the planet earth. Without sunlight, life would never have begun on earth.</span>
Answer: The angle of incidence is not always equal to the angle of reflection.
Explanation:
The angle of incidence might not be equal to the angle of reflection. It depends of the type of surface in consideration. If the surface is smooth, the incident ray will reflect out at the same angle the incident ray makes with surface. This is not the same for a rough or irregular surface.
For an irregular surface, the angle of incident is not equal to the angle if reflection because the reflected ray always reflects at different angles to the horizontal.
