Molecular Physics | Thermodynamics Answers

the equation PaVbTc = constant .reduce to Boyle's law

Carbon dioxide expands isothermally at 40C from 310 kpa absolute pressure to an absolute pressure of 175 kpa . Determine the final density of the gas.

The mass of a bottle of pepsi is 719.8 gm . If the soda volume is 746.1 ml and the weight of the empty bottle is 1.8 N . Calculate the density of the pepsi in kg/m3 .

which are correct for an ideal gas?
(a) (δP/δVm)=0
(b) (δE/δV)=0
(c) (δE/δP)#0
(d) (δn/δV)#0 [#= not equals to]

If 1 kg of water at 20 c and 1 kg of ice at -20 c are mixed. what will the final temperature?

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?