(a). Models are not totally inclusive, that is they do not contain all the possible data about an object. (b). Approximations are normally used, since these are not exact, different results may be observed for real events and model events. (c). Loss of accuracy as a result of over simplification.
Answer:
a) 0.0483 mol
b) 232 °C
Explanation:
Ideal gas law:
PV = nRT
where P is absolute pressure,
V is volume,
n is number of moles,
R is universal gas constant,
and T is absolute temperature.
a) Given:
P = 1.20×10⁵ Pa
V = 1.00 L = 1.00×10⁻³ m³
T = 25.8 °C = 298.95 K
PV = nRT
(1.20×10⁵ Pa) (1.00×10⁻³ m³) = n (8.314 m³ Pa / mol / K) (298.95 K)
n = 0.0483 mol
b) Given:
P = 1.013×10⁵ Pa
V = 2.00 L = 2.00×10⁻³ m³
n = 0.0483 mol
PV = nRT
(1.013×10⁵ Pa) (2.00×10⁻³ m³) = (0.0483 mol) (8.314 m³ Pa / mol / K) T
T = 505.73 K
T = 232 °C
<span>Let equation A be
h=ut+<span>12</span>g<span>t2 </span></span>
for 1st stone:
<span>h=<span>12</span> g<span>t2
</span></span>eq.-(A)
for 2nd stone:
<span>h=32m/s(t−1.6s)+<span>12</span>g(t−1.6s<span>)2
</span></span><span>h=32m/s∗t−51.5m+<span>12</span>g<span>t2</span>+12.544m−15.68m/s∗t
</span>
<span>h=16.32m/s∗t+h−38.656m
</span>
<span>t=2.3686s
</span>
now putting the value of t in eqn. A
<span><span>h=27.49m</span></span>
Answer:
Explanation:
Difference Between AM And FM. ... The main difference between both modulations is that in frequency modulation, the frequency of the carrier wave is modified as per the transmit data, while in amplitude modulation, the carrier wave is modified according to the data.
<span>Water is never added to earth system. Water forever remains in the water cycle on earth, so it goes from the ground, to the air, to the rain, to the sea, and round and round continuously. This cycle means that there does not need to be new water added to the earth, because it recycles any water that already exists of its own accord.</span>
