Answered

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How much energy must be removed from 13.9 grams of gaseous oxygen in order to decrease the temperature from 38.8°C to 23.8°C? The specific heat of oxygen is 0.219 cal/g °C. in cal

Sagot :

So,

To solve this question, we could use the equation:

What we're going to do now is to replace the values that we know:

The negative sign of the result indicates that this heat will be lost.

Therefore, the amount of energy that must be removed, equals 45.6615 cal.

View image JuliennaI120921
View image JuliennaI120921
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