Q. For an open unsteady state system, 15 J of heat was supplied and -5 J of work was done on the system, what is the value of change in enthalpy?

View solution

Q. Which of the following represents vaporization?

View solution

Q. Which of the following can definitely cause vaporization?

View solution

Q. Vaporization starts at which point?

View solution

Q. What is the vaporization temperature of water at standard conditions?

View solution

Q. What is the point of saturation of a condensable vapor?

View solution

Q. Which of the following is heat required in phase transitions?

View solution

Q. What is the latent heat for melting?

View solution

Q. 15 J is the latent heat for melting of ice, what is the heat of transition from 0°C ice to 15°C water if heat of transition from 0°C water to 15°C water is 10 J?

View solution

Q. 5 J is the latent heat for melting of ice, what is the heat of transition from 0°C ice to 15°C water if heat of transition from 0°C water to 15°C water is 12 J?

View solution

Q. 150 J is the latent heat for vaporization of water, what is the heat of transition from 50°C water to 100°C steam if heat of transition from 50°C water to 100°C water is 12 J?

View solution

Q. Heat of fusion of benzene is 10 J at 0°C, if Cp of solid benzene is 10 J/°C, and that of liquid benzene is 5 J/°C what is the enthalpy change of benzene from – 10°C to 10°C?

View solution

Q. If Cp of liquid water is 10 J/°C, what is the enthalpy change of water at standard conditions from – 10°C to 0°C?

View solution

Q. If Cp of liquid benzene is 15 J/°C, what is the enthalpy change of water from 5°C to 10°C?

View solution

Q. If Cp of solid benzene is 10 J/°C, what is the enthalpy change of water from 5°C to 75°C?

View solution

Q. If Cp of steam is 105 J/°C, what is the enthalpy change of steam from 106°C to 118°C?

View solution

Q. If Cp of water is (23 + T) J/°C, what is the enthalpy change of water from 3°C to 5°C?

View solution

Q. If Cp of water is 45T J/°C, what is the enthalpy change of water from 6°C to 8°C?

View solution

Q. Cp of ice is 25 J/°C and that of water is 30 J/°C, what is the enthalpy change of water from – 10°C to 35°C at standard conditions, if the later heat of fusion of water is 110 J?

View solution

Q. Cp of ice is 10 J/°C and that of water is 15 J/°C, what is the enthalpy change of water from – 15°C to 0°C at standard conditions, if the later heat of fusion of water is 110 J?

View solution