TE 303 - HW #1, P3 - NOx Emissions: UNITS - 6 pts

A typical car driven 12,000 miles/year emits to the atmosphere about 11 kg/year of NOx (nitrogen oxides), which causes smog in cities. Natural gas burned in a home furnace emits about 4.3 g of NOx per therm and electric power plants emit about 7.1 g NOx per kWh of electricity produced. Consider a household that has two cars and consumes 9,000 kWh of electricity and 1,200 therms of natural gas. Determine the amount of NOx emission to the atmosphere per year for which the household is responsible.