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What is the Formula for calculating the efficiency of a machine?
Efficiency = Output value / Input valueFor example, if a machine needs 10 KW to run and produces 8 KW, its power efficiency is 8/10 = 0.8 or 80%Efficiency is always between 0 and 1 (or 0 and 100 if expressed as a percentage.)
Is Kw equal to 1.0 x 10-14?
No. Kw is a measure of power with units [ML2T-3] whereas 1.0*10-14 is a pure, dimensionless number. There can be no equivalence because the dimensions do not match.
How much energy in kilowatt hour is consumed in operating 50w bulb for 10 hours per day iHow much energy in kilowatt hour is consumed in operating 50W for 10 hours per day in a month?
50 W * (1 kW/1000 W) * (10 hr/day) = 0.5 kW-hr/dayAssuming 30 days/mo.--> 0.5 kw-hr/day*(30 day/month) = 15 kW-hr/month
What is the number of units used by a 8 kw shower used for 30 minutes?
10
How many kw are 30 Mgw?
1 Megawatt = 1000 Kilowatts so 30 Mw = 30*1000 kw = 30,000 kw.
What is the numerical value of Kw at 298 k?
It is 1 x 10-14
What is the pH of pure water at 313 K if Kw at that temperature is 2.917 x 10 -14?
Kw = [H+][OH-] [H+] = 10-pH = 10-6.17 For [OH-] remember that heat causes more water molecules to self-dissociate but for every new H+ generated, a OH- is generated as well. Therefore, the concentration of H+ and OH- is equal. [OH-] = 10-6.17 Kw = [H+][OH-] = 10-6.17 * 10-6.17 = 10-12.34
What is the Formula for calculating the efficiency of a machine?
Efficiency = Output value / Input valueFor example, if a machine needs 10 KW to run and produces 8 KW, its power efficiency is 8/10 = 0.8 or 80%Efficiency is always between 0 and 1 (or 0 and 100 if expressed as a percentage.)
How do you calculate power factor kvr?
Power Factor = KVA/KW. This has no unit. Its value is always 1 or less.
What is the value for the ionization constant Kw for water at 25 degrees celsius?
1.0*10^-14 No Units
How is Kw valid?
Kw is the ionisation constant for water at 25°C which value is 1.0x10^-14. (chemistry)In water at any pH the equilibrium state Kw is defined by and equal to the 'ion product':Kw = [H3O+]*[OH-] = 1.0*10-14at room temperature 25°C
How do you calculate 10 mw windmill power to kw?
1 MW is 1000 kW therefore 10 MW is equal to 10,000 kW.
At a certain temperature the pH of a neutral solution is 7.56 What is the value of Kw at that temperature?
Kw = [H+][OH-][H+] = 10-pH = 10-7.56In neutral pure water the concentration of H+ and OH- is equal.[OH-] = 10-7.56Kw = [H+][OH-] = 10-7.56 * 10-7.56 = 10-15.12
pH value @ 25ºC - APHA 4500-H-B 7.4 CONVERT TO ppm?
import math def ph_to_ppm(ph): """Converts a pH value to ppm. Args: ph: The pH value to convert. Returns: The pH value in ppm. """ kw = 10 ** -ph t = 25 + 273.15 ion_product = kw * math.pow(10, -(t / 12.0)) return 10 ** (-ion_product / 2) if __name__ == "main": print(ph_to_ppm(7.4))
How the concentration of hydronium in water is 10-7?
Kw value of water is 1.0*10-14 moles2/L2 at room temperature. So the H3O+ ion concentration is 10-7 moles/L.
How does the concentration of hydronium in water is 10-7?
Kw value of water is 1.0*10-14 moles2/L2 at room temperature. So the H3O+ ion concentration is 10-7 moles/L.
How do you calculate KW from Volts?
Kw can be calculated from volts be using the formula p=(voltage)square/resistance*1000
