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alex41 [277]
3 years ago
5

Determine the total amount of heat, in joules, required to completely vaporize a 50.0-gram sample of h2o(?) at its boiling point

at standard pressure.
Physics
1 answer:
Tanzania [10]3 years ago
3 0
In order to calculate the amount of energy required, we must first check the latent heat of vaporization of water from literature. The latent heat of vaporization of any substance is the amount of energy required per unit mass to convert that substance from a solid to a liquid. For water this is 2,260 J/g. We now use the formula:
Energy = mass * latent heat
Q = 50 * 2,260
Q = 113,000 J

113,000 Joules of heat energy are required.
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Alborosie

Explanation:

If a metal rod of length L moves with velocity v is moving perpendicular to its length, in a magnetic field B, the induced emf is given by :

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A 212 kg bumper car is traveling 8.00 m/s when it rear ends a second 196 kg bumper car traveling at 6.75 m/s. If the cars get st
ahrayia [7]

Answer:

7.40m/s

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m_2 = 196kg

u_1 =6.75m {s}^{ - 1}

Since the two car stuck after collision, they all move with a common velocity in the same direction.

Let the velocity at which the two cars will be moving after collision be V.

From the conservation of momentum, in a closed system, momentum before collision is equal to momentum after collision.

Mathematically,

m_1u_1 +m_2u_2 = (m_1 + m_2)v

By substitution, we obtain;

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Dividing through by 408, we obtain

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7 0
3 years ago
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