Molecular Physics | Thermodynamics Answers

0.3kg of air at pressure of 350kN/m2 and a temperature of 35 oC receives heat energy at constant volume until its pressure become 700kN/m2. it then receives heat energy at constant pressure until its volume become 0.2289m3. determine the change of entropy during each process. take Cp = 1.006kJ/kgK and Cv = 0.717kJ/kgK

A metal bowl with a weight of 1.65 N is placed in a larger kitchen container filled with coconut oil. How much coconut oil must the bowl displace in order to float? For reference, the mass density of coconut oil is about 903 g/liter and its weight density is about 8.85 N/liter

What are ferroelectric materials? Explain with the example of BaTiO3. How are

they different from piezoelectric materials?

Calculate the mass of boron required to make a silicon crystal with 10^16

/cm^3

doping density, if the initial melt load of silicon is 50 kg. The density of silicon in

the melt is 2.5 g/cm^3

and boron has an atomic weight of 10.8 u. Assume that the

equilibrium segregation coefficient is constant throughout the growth process.

whats the quantity of heat given out if a bar of brass of mass 350g is cooled from 95°c to 20°c (specific heat capacity of brass= 380j/kg–¹k–¹)

a man takes brick out of fire at 285C he drops it in a bucket of water and hen covers the bucket. the bucket and cover are amade of insulating materials. the bucket contains 2.6kg of ice originally at -5C. the 1.3kg brick is made out of iro with a specific heat capacity of 448J/kg.C. find the temp of the brick and water when equilibrium is reached.

8 grams of oxygen at STP is compressed adiabatically to a pressure of 10 atm .How much work id done on the gas

Calculate the depth in the ocean at which the

pressure is three times atmospheric pressure.

Atmospheric pressure is 1.013 × 105 Pa. The

acceleration of gravity is 9.81 m/s2 and the density of sea water is 1025 kg/m3.

Answer in units of m.

Don't round answer.

how many calories are required to convert 100 grams of ice to steam?

200 kPa is equal to what