Molecular Physics | Thermodynamics Answers

a constant volume gas thermometer exerts an absolute pressure of 1000Pa at room temperature. if the pressure has been increased to 1500Pa. what will be the new temperature?

a quantity of low density gas in rigid container is initially at room temperature ( 20 degrees C ) and a presure of 15 kpa. what will be the pressure if the temperature increase thrice its initial temperature?

A gas contain in a flask of 500ml capacity was allowed to expand into another flask of volume 600ml connecting through a valve and at the same temperature,if the final pressure of the gas is 1.01×10^5pa,When the valve is open,what was the pressure of the gas in d 500mmgh?The volume of the flask is negligible

Superheated steam at 2 bar and 150oC is compressed isothermally. The steam in its final state is wet steam with a specific volume of 0.3511 m3 /kg.

Determine the change of enthalpy per kg of steam.

2 C₂H_6(g)      +      2 O_2(g) =  CO_2(g)    +      2 H₂O_(I)

1. How many grams of H₂O will be produced by 58.2 L of CH₄ at STP? Assume an excess of O₂.

Assuming compression is according to the law pV = constant. Calculate the initial volume of gas at a pressure of 2 bar which will occupy a volume of 6 cubic meters when it is compressed to a pressure of 42 bar.                                                                                                                        

A large mining company was provided with a 3 cu. meters of compressed air tank. Air pressure in the tank drops from 700 kPa to 180 kPa while the temperature remains unchanged at 28 ⁰C. What percentage has the mass of air in the tank been reduced.

Ammonia weighing 22 kgs is confined inside a cylinder equipped with a piston has an initial pressure of 413 kPa at 38°C. If 2900 kJ of heat is added to the ammonia until its final pressure and temperature are 413 kPa at 100°C, respectively, what is the amount of work done by the fluid in kJ?                                                                             

A certain gas at 101.325 kPa and 16°C whose volume is 2.83 m³ are compressed into a storage vessel of 0.31 m³ capacity. Before admission, the storage vessel contained the gas at a pressure and temperature of 137.8 kPa and 24°C; after admission the pressure has increased to 1171.8 kPa. What should be the final temperature of the gas in the vessel in Kelvin?