Molecular Physics | Thermodynamics Answers

Tony is driving across the outback in the middle of the night. He finds that he is running
out of petrol and might not make it to the next town. He tells Katie, his passenger, that he’s
going to turn off the headlights in order to save fuel. She tells him this is nonsense; the lights
are powered with electricity, not petrol. Who is right? Discuss.

Julia and Wayne heat their house during the winter with an electric heater. The thermostat
on the heater is set to 20°C and the thermostat is cycling on and off as it keeps the room
temperature stable. Julia walks out of the room leaving the lights on. Wayne tells Julia that
she is wasting electricity. Julia says that she’s not. Who is right? Discuss.

A slightly bruised apple will rot extensively in about 3.5 days at room temperature (22.0 degrees Celsius). If it is kept in the refrigerator at 0.5 degrees Celsius, the same extent of rotting takes about 12 days. What is the activation energy for the rotting reaction?

Can someone explain the formula and calculate the atmospheric pressure if the boiling point of water is 81 degrees Celsius?

A hill that has a 12.0% grade is one that rises 12.0 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such hill inclined above the horizontal

A 0.5kg piece of metal (c = 600/kgk) at 300 degreees celsius is dumped into a large pool of water at 20 degree celsius. Assuming the change in temperature of water to be negligible, calculate the overall change in enthropy for the system.

a0.5kg piece of metal (c = 600/kgk) at 300 degreee celcius is dumped into a large pool of water at 20 degree celsius. assuming the change in temperature of water to be negligible, caculate the overall change in enthropy for the4 system

If the mass of one litre of a gas at 273k and pressure 760mm/ Hg equals 5.236gm, calculate the mass of one mole of that gas.

How much vacuum needed to boil water at 65°C? How many Joules we need to evaporate one gram of water (if the water is at 65°C and under vacuum)? Please supply the equations/formulas/calculation, if it is possible.

Would the reversal potential (Erev) increase if ions flow out of the membrane to the outside environemnt of neurons, according to the Nernst equation?