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How much heat does it take to raise the temperature of 5.0 kg of plastic from 15°C to 75°C? The specific heat of plastic is 2.60 kJ/(kg•°C), Use Q= mc Tp-T). A. 300 kJ B. 780 kJ…

How much heat does it take to raise the temperature of 5.0 kg of plastic from 15°C to 75°C? The specific heat of plastic is 2.60 kJ/(kg•°C), Use Q= mc Tp-T). A. 300 kJ B. 780 kJ…
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3 votes
How much heat does it take to raise the temperature of 5.0 kg of plastic from

15°C to 75°C? The specific heat of plastic is 2.60 kJ/(kg•°C),
Use Q= mc Tp-T).
A. 300 kJ
B. 780 kJ
C. 196 kJ
D. 980 kJ

asked
User Nikovn
by
7.7k points

1 Answer

2 votes

Answer:

B

Step-by-step explanation:

Q=mc (75-15)

=5.0kg×2.6×1000J/kg.K×50K

answered
User Pedja
by
8.6k points
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