The excess internal energy of metabolism is exhausted through a variety of channels, such as through radiation and evaporation of perspiration. Consider another pathway for energy loss: moisture in exhaled breath. Suppose you breathe out 22.0 breaths per minute, each with a volume of 0.600 L. Suppose also that you inhale dry air and exhale air at 37C containing water vapor with a vapor pressure of 3.20 kPa. The vapor comes from the evaporation of liquid water in your body. Model the water vapor as an ideal gas. Assume its latent heat of evaporation at 37C is the same as its heat of vaporization at 100.C. Calculate the rate at which you lose energy by exhaling humid air.

(a) How much energy is necessary to heat 1.0 kg of water from room temperature (20C) to its boiling point? (Assume no energy loss.) (b) If electrical energy were used, how much would it cost at 12 per kWh?

#1) in 2021, the tallest building in the world, the Burg khalifa, klas estimated at $1.5 billion. Suppose used to pay for an ordinary used. by 0.35 KW micro klave oven at a rate of $0.56/kw-h. this money the energy KS (e) How much energy with this $1.5 billon? to (in kJ) can be supplied (b) How long (in years) can the microwave oven be powered? please show step by step workings.