Molecular Physics | Thermodynamics Answers

one pound of water in changing to steam receives 970.3 BTU at 212°F. Determine the change in specific entropy for the process, BTU/lb-°R

fifty btu are added to one pound of air during a constant pressure process starting at a temperature of 100°F. Calculate the final temperature of the air, degrees F, for a constant pressure specific heat of 0.24 BTU/lb-°F. The calculate the final temperature of the air, starting at 100°F, for the same quantity of heat added during a constant volume process for which the average specific heat is 0.171 BTU/lb-°F

A fuel oil heater receives 23200 lb of oil per hour at 80°F and discharges it at 160°F. The specific heat of the oil is 0.48 BTU/lb-°F. Find the rate of heat transfer to the oil, BTU/hr.

A jet slows uniformly from 153 km/h to 0 km/h over 42 m. What is the jet's accelertion?

A unit mass of carbon dioxide gas is contained in a cylinder behind a piston and is heated from p1 = 552 kPa and V1 = 0.0184 m3

to p2 = 138 kPa. It expands acc

ording to a law pV1.3 = constant and the heat supplied to the gas during

the expansion process is 10.125 kJ. Calculate, per unit of mass:

(a) the work done during the of expansion process.

(b) the change in the internal energy of carbon dioxide.

A unit mass of carbon dioxide gas is contained in a cylinder behind a piston and is heated from p1 = 552 kPa and V1 = 0.0184 m3

to p2 = 138 kPa. It expands acc

ording to a law pV1.3 = constant and the heat supplied to the gas during

the expansion process is 10.125 kJ. Calculate, per unit of mass:

(a) the work done during the of expansion process.

(b) the change in the internal energy of carbon dioxide.

How long will it take a 50 watts heater to melt 100 g of ice at 0 C

Supposing a bridge is built from pieces of 4.46m long newly fabricated metal of linear expansivity 9.5×10^-6. If the gaps between the metals are 5.18mm on a day with temperature 15C, at what temperature will the pieces of metal begin to touch one another?

Oxygen gas having volume of 500cm3 at 27 degree and pressure of 8.31Pa .expands until its volume becomes 1.0m3 and its pressure 10Pa.Find the mass in moles of oxygen and its final temperature.

an ideal monatomic gas expands adiabatically from a state with pressure 8.1x10^5 Pa and volume 2.5x10^-3 m^3 to a state of volume 4.6x10^-3 m^3, calculate the new pressure of the gas