Answer:
Explanation:
Given
Temperature of solid
Einstein Temperature
Heat Capacity in the Einstein model is given by
Substitute the values
Answer:
a mass of water required is mw= 1273.26 gr = 1.27376 Kg
Explanation:
Assuming that the steam also gives out latent heat, the heat provided should be same for cooling the hot water than cooling the steam and condense it completely:
Q = mw * cw * ΔTw = ms * cs * ΔTw + ms * L
where m = mass , c= specific heat , ΔT=temperature change, L = latent heat of condensation
therefore
mw = ( ms * cs * ΔTw + ms * L )/ (cw * ΔTw )
replacing values
mw = [182g * 2.078 J/g°C*(118°C-100°C) + 118 g * 2260 J/g ] /[4.187 J/g°C * (90.7°C-39.4°C)] = 1273.26 gr = 1.27376 Kg
Answer:
final pressure = 0.7 MPa
quality = 20 degree super heat.
Explanation:
Given data:
water temperature 120 degree celcius
quality
we know that from saturated water temperature table . for T =120 DEGREE
we know that
= 0.001060 + 0.33(0.89133- 0.001060)
= 0.29485 m^3/kg
frinal temperature of water is
= 120 + 65 = 185 Degree
from saturated water temp. table
for T = 185 degree, VG = 0.17390 m^3/kg
from super heated table by interpolation
final pressure = 0.7 MPa
quality = 20 degree super heat.
Answer:
Speed=1.633 m/s
Force= 20 N
Explanation:
Ideally, hence where v is the speed of collar, m is the mass of collar, k is spring constant and s is the displacement.
In this case, s=100-0=100mm=0.1m since 1 m is equivalent to 1000mm
k is given as 200 N/m and mass is 0.75 Kg
Substituting the given values
Therefore, <u>the speed is 1.633 m/s</u>
The sum of vertical forces is given by mg where g is acceleration due to gravity and it's value taken as
Therefore,
The sum of forces in normal direction is given by therefore
Therefore, <u>normal force on the rod is 20 N</u>