Answer: 18634 joules
Explanation:
The quantity of Heat Energy (Q) released when a heated substance is cooled depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)
Thus, Q = MCΦ
Since,
Q = ?
Mass of oil = 345g
C = 0.220 J/g°C
Φ = (Final temperature - Initial temperature)
= 0°C - 220°C = -220°C
Then, Q = MCΦ
Q = 345g x 0.220 J/g°C x -220°C
Q = 18634 joules (note that negative sign will not reflect in answer, because it only indicates that heat was released rather than gained)
Thus, 18634 joules of heat is released
The electron has a higher frequency compared to the neutron. It can be explained by the way an electron orbits the nucleus of an atom.
According to Quantum Mechanics, electrons do not really orbit the nucleus of an atom. In fact, the most tightly bound state, the 1s orbital, has no angular momentum at all. This would be the state with the most "kinetic energy" and yet there is no "orbital" motion at all in this state.
<span>However, there are frequencies associated with each orbital.</span>
The person on top is very correct have a beautiful lovely day:)
Answer:
Islands and coastal places have moderate pleasant climates.
Explanation:
The specific heat of water is very large as compared to most of the common substances. The result of this characteristic is that water heats slowly and cools slowly. In coastal region and islands, the air above lands gets heated up quickly as compared to air above water. The hot air is lighter and rises. The cool air above water rushes to takes its place. This is known as sea breeze. At night, the wind blows from land towards the sea as land cools down faster than water. land breeze occurs at night. Due to sea breeze and land breeze, moderate pleasant climates characterizes the islands and coastal regions.
Answer:
P = 17.9618 atm
Explanation:
The osmotic pressure can be calculated and treated as if we are talking about an ideal gas, and it's expression is the same:
pV = nRT
However the difference, is that instead of using moles, it use concentration so:
p = nRT/V ----> but M = n/V so
p = MRT
We have the temperature of 18 °C (K = 18+273.15 = 291.15 K) the value of R = 0.08206 L atm / K mol, so we need to calculate the concentration, and we have the mass of HCl, so we use the molar mass of HCl which is 36.45 g/mol:
n = 13.7/36.45 = 0.3759 moles
M = 0.3759/0.5 = 0.7518 M
Now that we have the concentration, let's solve for the osmotic pressure:
p = 0.7518 * 0.08206 * 291.15
<em><u>p = 17.9618 atm</u></em>
