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Molecular Physics | Thermodynamics
1. 500 mL C2H6 was measured at STP, Determine how many grams of C2H6 were measured.
2. The mass percentage composition of sodium metal in 58.44 g NaCl is about 39.34%, Determine the percentage composition of sodium in 1000 g of NaCl.
2. The mass percentage composition of sodium metal in 58.44 g NaCl is about 39.34%, Determine the percentage composition of sodium in 1000 g of NaCl.
Molecular Physics | Thermodynamics
1. The density of water is 1.00 g/ML at 4 degrees Celsius. How many water molecules are present in 2.56 mL at this temperature?
2. For a 4.35 g sample of ammonia gas (NH3), Determine:
(a) Number of ammonia molecules.
(b) Total number of atoms in a sample.
(c) Volume of the gas at room temperature of 25 degrees Celsius and a pressure of 1 atm.
2. For a 4.35 g sample of ammonia gas (NH3), Determine:
(a) Number of ammonia molecules.
(b) Total number of atoms in a sample.
(c) Volume of the gas at room temperature of 25 degrees Celsius and a pressure of 1 atm.
Molecular Physics | Thermodynamics
1 kg of gas is contained in a Piston-cylinder assembly at 10 bar. The gas is allowed to expand reversibly until volume becomes twice the initial value, by following PV2 = C. The gas is then cooled at constant pressure until the piston reaches to its original position. Finally heat is supplied to the fluid reversibly, with piston firmly locked, and due to which the fluid pressure rises to its initial value of 10 bar. If fluid has an initial volume of 0.05 m3. Determine the net work done.
Molecular Physics | Thermodynamics
A gas enclosed in a cylinder-piston arrangement is heated slowly to change its state from 100 kPa, 0.03 m3 to an initial state of 0.1 m3. Assuming volume of the gas changes inversely with pressure, determine amount of work done during the process.
Molecular Physics | Thermodynamics
Find the change in internal energy of a system, if the system expels a net thermal energy of 2.5 × 104J from the environment, then the system does a work of 17 × 103 J on the environment. Explain your steps during solution.
Molecular Physics | Thermodynamics
A carnot's engine is operated between two reservoirs at temperatures of 500 K and 400 K. If engine receives 2000 calories of heat from the source in each cycle then calculate (a) amount of heat rejected to sink in each cycle (b) work done by engine in each cycle in terms of joule
Molecular Physics | Thermodynamics
A heat engine working between two temperatures could theoretically convert one-eighth of the heat supplied to the work. If the lowered temperature is reduced by 95°C , the theoretical efficiency would be doubled. Find the source and sink temperature
Molecular Physics | Thermodynamics
A carnot engine has its source at 120°C and its sink is maintained at a constant temperature by means of ice at 0°C. If it is working at the rate of 175 watts, how much ice will melt in two minutes?
Molecular Physics | Thermodynamics
An inventor claims to have developed an engine working between 660k and 300k capable of having efficiency of 52%. Comment of his claim
Molecular Physics | Thermodynamics
The equilibrium internuclear distance of molecule CO is 113.53micrometer.calculate energy of molecule for j=1; C=12; O=16
