What is thermodynamics?
Which of the following is a branch of thermodynamics?
Which of the following is a thermodynamics law?
Heat does not spontaneously flow from a colder body to a hotter one. Which of the following thermodynamics law states this?
Which of the following is an application of thermodynamics?
Which of the following is a type of thermodynamic system?
Which of the following occurs without a change in the internal energy?
Which of the following thermodynamic law gives the concept of enthalpy?
What is the value of the absolute thermodynamic temperature scale?
Which of the following follows the Carnot theorem?
If a piston/cylinder with a cross-sectional size of 0.01 m2 is resting on the stops, what should the water pressure be to lift the piston with an outside pressure of 100 kPa?
At 100°C, a sealed rigid vessel with a volume of 1 m3 and 2 kg of water has a volume of 1 m3. The vessel has now been warmed up. What pressure should a safety pressure valve be adjusted to achieve a maximum temperature of 200°C if one is installed?
When the diver is 8 meters below the surface, the pressure gauge on his air tank reads 60 kPa. The gauge pressure will be 0 at what depth?
Which of the following is the standard fixed point of thermometry?
Which of the following is chosen as the standard thermometric substance?
What is the magnitude of mechanical work?
Which of the following gives the Mechanical efficiency of the engine?
Which of the following type of motion does Shaft uses to do work?
A refrigerator with a 2 kW motor for powering the compressor gives 6000 kJ of cooling to the refrigerated space during 30 minutes of operation in a thermally insulated kitchen. Calculate the change in internal energy of the kitchen if the condenser coil behind the refrigerator rejects 8000 kJ of heat to the kitchen over the same time period.
At 15°C, a steel pot with a 5 mm thick bottom is filled with liquid water (conductivity 50 W/m K). The pot has a 10 cm radius and is now placed on a stove with a heat transmission of 250 W. Calculate the temperature on the bottom of the outer pot assuming the inner surface is 15°C.
Heat flow into a system is ____, and heat flow out of the system is ________
What does (m*g*z) give?
The enthalpy and internal energy are the function of temperature for
In which of the following systems does mass transfer occur across the system boundary?
When more than one fluid stream enters or leaves the control volume, which of the following type of balance is taken?
Fluid flow through which of the following throttles the flow?
Rate of energy increase within the control volume is given by
Which of the following is true for a discharging tank?
A cylinder/piston contains 1kg methane gas at 100 kPa, 20°C. The gas is compressed reversibly to a pressure of 800 kPa. WHat is the work required if the process is isothermal?
A piston/cylinder contains carbon dioxide at 300 kPa, 100°C with a volume of 0.2 m^3. Weights are added at such a rate that the gas compresses according to the relation PV^1.2 = constant to a final temperature of 200°C. Find the work done during the process.