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Elodia [21]
3 years ago
5

2. How many calories are needed to raise 50 g of iron from 55°C to 200°C? (c = 0.110 cal/g °C)

Chemistry
1 answer:
lord [1]3 years ago
3 0

Answer:

Q = 797.5 cal

Explanation:

Given that,

Mass of iron, m = 50 g

The temperature rises from 55°C to 200°C.

We need to find the heat needed to raise the temperature. The heat raised is given by :

Q=mc\Delta T

Put all the values,

Q=50\times 0.11\times (200-55)\\\\Q=797.5\ cal

So, 797.5 calories of heat is needed.

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