What is a controlled experiment?
2 answers:
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The distance from the thermal energy source affect the amount of thermal energy transfer occurring in a substance in a way that area that the radiation is spread over is four times as large for just the double distance.
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As it moves away from the source, the same quantity of energy is dispersed over a larger and larger sphere every second. For simply the twice distance, the radiation's distribution area is four times as large.
The solar constant (also known as the solar coefficient), abbreviated S, refers to the Sun's intensity on Earth, , in units. This information reveals how much radiation enters a square metre of Earth (or any other planet at a similar distance from the sun).
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Answer:
The minimum mass of ethylene glycol = 6.641 Kg
Explanation:
Where T_f = freezing point of pure solvent water, 0°C
T_f'= Freezing point of solvent after mixture
K_f = Freezing point depression constant = 1.86 °C/m
Moecular weight of ethylene glycol = 60 g/mol
Weight of ethylene glycol = 14.5 Kg= 14.5×10^3 g
molality of ethylene glycol
Substitute the values to calculate m
by formula
calculating we get w = 6641.93 g
Therefore, The minimum mass of ethylene glycol = 6.641 Kg