The answer is 1) gained
Always <span><span>think "into" for "endo" (energy goes in), and "exit" for "exo" (energy is released).</span> </span>
Hope it helps ^-^
Answer: a) 211 mm Hg
b) 0.629 grams
Explanation:
According to Dalton's law, the total pressure is the sum of individual pressures.
= total pressure = 750 mmHg
= 124 mm Hg
= 218 mm Hg
= 197 mm Hg
= ?
Thus the partial pressure of the helium gas is 211 mmHg.
b) According to the ideal gas equation:
P = Pressure of the gas = 211 mmHg = 0.28 atm (760mmHg=1atm)
V= Volume of the gas = 13.0 L
T= Temperature of the gas = 282 K
R= Gas constant = 0.0821 atmL/K mol
n= moles of gas= ?
Mass of helium= 
Thus mass of helium gas present in a 13.0-L sample of this mixture at 282 K is 0.629 grams
Answer:
652.174nm
Explanation:
We need to know that the speed of light never changes. It has a value of 3 × 10^8 m/s.
Given only the frequency, we can find the wavelength by dividing the value of the speed of light by the value of the frequency.
That equals = (3 × 10^8) ÷ ( 4.6 × 10^14) = 0.000000652174 m = 652.174 ÷ 10^-9m = 652.174nm
Aria speed during scuba diving was 0.15 m/s.
Speed is the ratio of the distance travelled to the time taken. Speed is given by:
Speed = distance / time
Given that the distance travelled was 36 meters and the time was 4 minutes, hence:
Time = 4 minutes × 60 seconds per minute = 240 seconds
Speed = 36 m / 240 s
Speed = 0.15 m/s
Therefore Aria speed during scuba diving was 0.15 m/s.
Find out more at: brainly.com/question/22610586
