Question

The heat capacity of aluminum is 0.900 j/gc. How much energy is needed to raise the temperature of a 850 g block of aluminum from 22.8 c to 94.6 c?

Answer 1

54827 J energy will required to increase the temperature from   22.8°C to 94.6°C

Explanation:

We have given mass of aluminium m = 900 J/gram°C

Mass of the aluminium m = 850 gram

The temperature of the aluminium is increases from 22.8°C to 94.6°C

So increase in temperature $\Delta T$ = 94.6 - 22.8 = 71.8°C

We have to fond the energy required to raise the temperature

We know that energy is given by $Q=mc\Delta T$, here m is mass, c is specific heat and $\Delta T$ is increase in temperature

So energy $Q=850\times 0.9\times 71.8=54827J$

So 54827 J energy will required to increase the temperature from   22.8°C to 94.6°C

Learn more

How many joules of heat are needed to raise the temperature of 25 g of aluminum from 30°C to 72°C, if the specific heat of aluminum is 900 J/kg°C

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Answer 2

Explanation:

So increase in temperature \Delta TΔT = 94.6 - 22.8 = 71.8°C

We have to fond the energy required to raise the temperature

We know that energy is given by Q=mc\Delta TQ=mcΔT , here m is mass, c is specific heat and \Delta TΔT is increase in temperature

So energy Q=850\times 0.9\times 71.8=54827JQ=850×0.9×71.8=54827J

So 54827 J energy will required to increase the temperature from 22.8°C to 94.6°C

Learn more

How many joules of heat are needed to raise the temperature of 25 g of aluminum from 30°C to 72°C, if the specific heat of aluminum is 900 J/