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const2013 [10]
3 years ago
6

How much heat is generated when 2.04 g of lead changes in temperature from 104 Kelvin to 204 Kelvin? Report your answer in Joule

s.
Chemistry
1 answer:
Arte-miy333 [17]3 years ago
7 0

Answer:

When 2.04g of lead is heat from 104 Kelvin to 204 Kelvin, there is 26.112 Joule generated.

Explanation:

<u>Step 1</u>: Data given

2.04 grams of lead changes from 104 to 204 Kelvin

<u>Step 2</u>:  Calculate the generated heat

Q = m*c*ΔT

with Q = Heat energy (in Joules)

with m = mass of a substance (kg)

with c = specific heat (in J/g*K)

with ΔT = Change in temperature = T2 - T1

In this case we have

Q = TO BE DETERMINED

m = 2.04 grams

c = specific heat of lead = 0.128J/ g*K  

ΔT = 204 Kelvin - 104 Kelvin = 100

Q = 2.04g * 0.128 J/g*K * 100 K = 26.112 J

When 2.04g of lead is heat from 104 Kelvin to 204 Kelvin, there is 26.112 Joule generated.

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