<span>250 ml * 1.25 g/ml * 3.74 j/g-K * 9.2 K = 10.752 kJ
Pretty much, all you need to do here is multiply all of these out to get your final answer. Not all questions are this easy, but this is certainly one of them.</span>
Answer:
Explanation:
Distance is the product of speed and time.
The speed is 8 kilometers per hour and the time is 4 hours.
Substitute the values into the formula and multiply. Note that the hours will cancel when multiplied.
Mr. Evans traveled <u>32 kilometers.</u>
If the ratio of mass to volume is higher, then density is higher. If the ratio of mass to volume is lower, the density is lower.
2H₂ + O₂ -------> 2H₂O
mole of H₂ =
=
= 0.7 mol
mole ratio of H₂ : H₂O
= 1 : 1
∴ if mole of H₂O = 0.7 mol
then mole of water = 0.7 mol
Thus:
mass of water = mole x Mr
= 0.7 mol x ((2 x 1) + (1 x 16))
= 12.6 g of water vapour
The higher its frequency. Since short wavelengths have more energy, the frequency gets higher. Hope this helped!
-TTL