Thermodynamics for Chemical

Specific volume of an ideal gas is____________________?

Byadmin March 12, 2019August 29, 2021

Specific volume of an ideal gas is____________________?

A. Equal to its density
B. The reciprocal of its density
C. Proportional to pressure
D. None of these

Thermodynamics for Chemical

The first law of thermodynamics is a restatement of the law of conservation of_________________?

The first law of thermodynamics is a restatement of the law of conservation of_________________?

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

Read More The first law of thermodynamics is a restatement of the law of conservation of_________________?
Thermodynamics for Chemical

A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. Specific heat of block material is 0.4 kJ.kg-1. K-1. Ignoring the effect of expansion and contraction and also the heat capacity to tank, the total entropy change in kJ.kg-1, K-1 is_________________?

A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. Specific heat of block material is 0.4 kJ.kg-1. K-1. Ignoring the effect of expansion and contraction and also the heat capacity to tank, the total entropy change in kJ.kg-1, K-1 is_________________?

A. -1.87
B. 0
C. 1.26
D. 3.91

Read More A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. Specific heat of block material is 0.4 kJ.kg-1. K-1. Ignoring the effect of expansion and contraction and also the heat capacity to tank, the total entropy change in kJ.kg-1, K-1 is_________________?
Thermodynamics for Chemical

High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process ?

High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process ?

A. Δ H = 0 and ΔS = 0
B. Δ H ≠ 0 and ΔS = 0
C. Δ H ≠ 0 and ΔS ≠ 0
D. Δ H = 0 and ΔS ≠ 0

Read More High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process ?
Thermodynamics for Chemical

Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is_____________________?

Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is_____________________?

A. Positive
B. Negative
C. Zero
D. Infinity

Read More Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is_____________________?
Thermodynamics for Chemical

Heat of reaction at constant volume is identified with _____________ change?

Heat of reaction at constant volume is identified with _____________ change?

A. Enthalpy
B. Internal energy
C. Either A. or B
D. Neither A. nor B

Read More Heat of reaction at constant volume is identified with _____________ change?
Thermodynamics for Chemical

Refrigeration capacity of a household refrigerator may be round about _____________ tons?

Refrigeration capacity of a household refrigerator may be round about _____________ tons?

A. 0.15
B. 1.5
C. 4.5
D. 6.5

Read More Refrigeration capacity of a household refrigerator may be round about _____________ tons?

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