$15.$ Temperature Increase in Fluidized Bed Combustion:

In a fluidized bed combustion system, $2000$ kg$/$hr of coal with a heating value of $24$ MJ$/$kg is burned. If the heat capacity of the system $($including the bed material$)$ is $0\mathrm{.}5$ kJ$/$kg$$C and no heat loss to the environment, calculate the temperature increase of the system per hour.

$16.$ Emission Factor Calculation for Gas Burner:

A gas burner emits $0\mathrm{.}8$ kg of CO$2$ per m$^3$ of natural gas burned. If the burner operates for $5$ hours and consumes $200$ m$^3$ of gas per hour, calculate the total CO$2$ emissions produced.