Thermodynamics for Chemical

Heating of water under atmospheric pressure is an ______________ process?

Byadmin March 12, 2019August 30, 2021

Heating of water under atmospheric pressure is an ______________ process?

A. Isochoric
B. Isobaric
C. Adiabatic
D. Isothermal

Thermodynamics for Chemical

At the critical point of a substance____________?

At the critical point of a substance____________?

A. The surface tension vanishes
B. Liquid and vapour have the same density
C. There is no distinction between liquid and vapour phases
D. All A, B. and C

Read More At the critical point of a substance____________?
Thermodynamics for Chemical

For a cyclic process, a fixed ratio between heat and work___________________?

For a cyclic process, a fixed ratio between heat and work___________________?

A. Always exists
B. May exist
C. Never exists
D. Is difficult to predict

Read More For a cyclic process, a fixed ratio between heat and work___________________?
Thermodynamics for Chemical

Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg. K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is_______________?

Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg. K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is_______________?

A. Superheated vapour
B. Partially condensed vapour with quality of 0.9
C. Saturated vapour
D. Partially condensed vapour with quality of 0.1

Read More Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg. K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is_______________?
Thermodynamics for Chemical

One ton of refrigeration capacity is equivalent to the heat removal rate of____________________?

One ton of refrigeration capacity is equivalent to the heat removal rate of____________________?

A. 50 kcal/hr
B. 200 BTU/hr
C. 200 BTU/minute
D. 200 BTU/day

Read More One ton of refrigeration capacity is equivalent to the heat removal rate of____________________?
Thermodynamics for Chemical

At a given temperature, the volume of a gas dissolved in a solvent _______________ with increase in pressure?

At a given temperature, the volume of a gas dissolved in a solvent _______________ with increase in pressure?

A. Increases
B. Decreases
C. Remains unchanged
D. May increase or decrease; depends on the gas

Read More At a given temperature, the volume of a gas dissolved in a solvent _______________ with increase in pressure?
Thermodynamics for Chemical

Lenz’s law results from the law of conservation of___________________?

Lenz’s law results from the law of conservation of___________________?

A. Mass
B. Momentum
C. Energy
D. None of these

Read More Lenz’s law results from the law of conservation of___________________?

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