Answer:
11.3298W
Explanation:
The rate of heat transfer is determined from the enthalpy of vaporization at the give pressure obtained and the mass flow rate. The mass flow rate is determined from the volume of the boiled water, the given time interval and the specific volume of the saturated liquid.
Given that
1atm as the atmospheric pressure
Internal diameter = 20cm = 0.2m
Time = 15mins = (15×60)secs
Latent heat of vaporization (hevap) = 2256.6
Q = mh(evap)
= m/∆t . hevap
= V/αliq∆t ×h(evap)
D^2π∆h/4αliq ∆t × hevap
= 0.2^2 ×π×0.8×2256.5/4×0.001043×15×60
=0.04×3.142×0.08×2256.6/2.00256
= 22.68876/2.00256
Q = 11.3298W
Answer:
Explanation: Isotopes generally have same proton number and electron number. Their mass number and neutron number is different.
Neutron number =mass number -proton number
Answer:
SI units are the physical units of measurement. SI units include kilogram, meter, second, ampere, kelvin, candela, and mole etcetera.
<u>SI units are very important for daily life while measuring daily life commodities, such as:</u>
- Use of kilograms and grams while buying or selling sugar or other food items.
- Use of kilometers and meters while covering distances.
- Use of meters or inch by carpenters while estimating the lengths for furniture.
- Use of hours, seconds and minutes to measure time duration.
- Use of ampere and volt to measure current and voltage respectively by electricians.
Without SI units, it would be difficult to meausre the amount of object required or any other measurement object.
Answer:
electron dot diagram is the answer to your question.
The more slanted the sun's rays are, the longer they travel through the atmosphere, becoming more scattered and diffuse. In the winter, Earth tilts away from the Sun.