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xxTIMURxx [149]
3 years ago
14

Pls helppp

Chemistry
1 answer:
defon3 years ago
6 0

The heat absorbed to raise temperature : Q = 31350 J

<h3>Further explanation </h3>

Given

m = mass = 150 g

Δt = Temperature difference : 50 °C

Required

Heat absorbed

Solution

Heat can be formulated

<em> Q = m.c.Δt </em>

The specific heat of water = c = 4.18 J/g °C  

Input the value :

Q = 150 x 4.18 x 50

Q = 31350 J

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When a piece of metal is irradiated with UV radiation (λ = 162 nm), electrons are ejected with a kinetic energy of 3.54×10-19 J.
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We have that the work function of the metal

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From the Question we are told that

UV radiation (λ = 162 nm)

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Generally the equation for Kinetic energy    is mathematically given as

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