Explanation:
Apply Boyle's Law :-
P1V1 = P2V2
- Where P1 is 25 atm
- V1 is 3L
- P2 is 75 atm
- V2 is what we need to find out.
25 × 3 = 75 × V2


<u>So, the answer is d) Part, 1L .</u>
Hope it helps :)
Answer : The voltage applied by the batteries is, 6.0 V
Solution : Given,
Resistance of flashlight = 2.4 ohm
Current in the circuit = 2.5 Ampere
Formula used :

where,
V = applied voltage
I = current in the circuit
R = resistance of light
Now put all the given values in the above formula, we get

Therefore, the voltage applied by the batteries is, 6.0 V
Answer:
Scientist use GPS satellites and movement tracers.
Explanation:
The correct answer is B)wave mechanical. Hope that helps! If you have any questions about the answer i gave you please let me know!
Molar mass KCl = 74.55 g/mol
Number of moles:
mass KC / molar mass
149 / 74.55 => 1.998 moles
Volume in liters: 500 mL / 1000 => 0.5 L
Therefore:
M = moles / volume
M = 1.998 / 0.5
M = 3.996 mol/L⁻¹