1. Enthalpy ‘H’ is defined as *

CHOICES:

H = U – TS

None of these

H – U = PV

H = U – PV

2. Internal energy of an ideal gas *

CHOICES:

decreases with increase in temperature

is independent of temperature

none of these

increases with increase in pressure

3. The point at which all three phases co-exist is known as *

CHOICES:

boiling point

Triple point

freezing point

none of these