States of matter

Question 1

Specific heat capacity

Answer 1

defined as the amount of heat required to raise the temperature of 1 kilogram of a substance by 1 kelvin. SI unit of specific heat capacity J/ kg/ K.

Question 2

Heat capacity

Answer 2

Heat capacity is the amount of heat required to raise the temperature of a given object by 1 kelvin

Question 3

Latent heat

Answer 3

heat required to change the state of substance at constant temperature. When it is from liquid to vapour it is called vapourisation and when from solid to liquid it is called fusion

Question 4

Henry’s law

Answer 4

States at particular temperature the amount of a given gas dissolved in a given liquid is directly proportional to the partial pressure of gas in equilibrium with the liquid.

Applicable to gases such as CO2, O2, N2O; but not volatiles such as halothane/ iso.

Question 5

Established turbulent flow is independent of viscosity?

Answer 5

False. Reynold’s number increases with decrease in viscosity, hance turbulent flow is increased with low fluid viscosity.

Question 6

Oxygen

Answer 6

O2; has BP of -183C, crit temp of -118C.

Not flammable in itself but supports combustion.

Question 7

What is paramegnetism?

Answer 7

Paramagnetism is a property of a gas due to unpaired electron in the outermost orbit; because of which it gets attracted in magnetic field.

Question 8

Critical temperatures in some anaesthetic gases?

Answer 8

In degrees C:
O2: -118.
N2: -147.
N2O: 36.5.
CO2: 31.
Air: -140.5.