A geyser heats water flowing at the rate of 3.0 liter per minute from 27°C to 77°C. If the geyser operates on a gas burner and its heat of combustion is 4.0 x 10⁴ J/g, then what is the rate of combustion of fuel (approx.)?
a) 24 g/min
b) 12 g/min
c) 32 g/min
d) 16 g/min
