Question

Complete combustion of 2.0 metric tons of coal to gaseous carbon dioxide releases 6.6X10¹⁰ J of heat. Convert this energy to

Answer 1

First of all we should know that, 1 Joule = 0.000239 kilocalories.

So, 6.6×$10^{10}$ J = 6.6×$10^{10}$ × 0.000239 kilocalories

      6.6×$10^{10}$ J = 15774000 kilocalories

                       = 1.58 × $10^{7}$ kilocalories

One joule is described as the quantity of electricity exerted when a pressure of 1 newton is implemented over a displacement of 1 meter. Within the SI machine, the unit of labor or electricity is the Joule.

The kilocalorie, or meals calorie, is the quantity of warmth required to elevate one kilogram of water 1 °C. warmness capability is the amount of heat required to raise one gram of material 1 °C beneath steady pressure. A kilocalorie is the amount of warmth required to raise the temperature of 1 kilogram of water one diploma Celsius.

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