1.3 × 10⁶ Joules of heat is required to raise the temperature of 5 kilograms of coal from 20°C to 220°C
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Further explanation
Specific Heat Capacity is the amount of energy needed to raise temperature of 1 kg body for 1°C.
\(\large {\boxed{Q = m \times c \times \Delta t} }\)
Q = Energy ( Joule )
m = Mass ( kg )
c = Specific Heat Capacity ( J / kg°C )
Δt = Change In Temperature ( °C )
Let us now tackle the problem!
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Given:
mass of coal = m = 5 kg
change in temperature = Δt = 220 - 20 = 200°C
specific heat capacity of coal = c = 1.3 × 10³ J/kg°C
Asked:
heat required = Q = ?
Solution:
\(Q = mc\Delta t\)
\(Q = 5 \times (1.3 \times 10^3) \times 200\)
\(Q = 1.3 \times 10^6 \texttt{ Joules}\)
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Conclusion:
1.3 × 10⁶ Joules of heat is required to raise the temperature of 5 kilograms of coal from 20°C to 220°C
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Learn more
- Efficiency of Engine : https://brainly.com/question/5597682
- Flow of Heat : https://brainly.com/question/3010079
- Difference Between Temperature and Heat : https://brainly.com/question/3821712
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Answer details
Grade: College
Subject: Physics
Chapter: Thermal Physics
