Answer:
Specific latent heat of fusion is the energy per unit mass to cause change of state between solid and liquid at constant temperature.
Answer:
The following are possible observations:
Rate of increase in mass of beaker and water is constant
Level of water rises at a constant rate
Volume of water in beaker increases at a constant rate
Constant time between drops
Answer:
The question is about calculating power.
power P = ΔE / t
and since ΔE = mLf, then P = mLf / t
P = (185.0 - 121.5) (332) / (5.00) (60)
P = 70.3 W
Answer:
The rate at which energy is transferred to the system is calculated above.
From the data collected, this energy could have come from the electrical power supplied.
P = IV
P = 12.8 x 4.60
P = 58.9 W
The power supplied is less than the rate of energy transferred to ice. This means that another source of energy is present i.e. surrounding. The rate at which energy is gained from the surroundings, therefore is
70.3 W - 58.9 W
11.4 W
No comments:
Post a Comment